| File extension Name |
extension description |
| .T | Paradox Database File |
| .T | ReaGeniX Code Generator Tester Symbol Table |
| .T | Turing Programming Language File (Holt Software Associates, Inc.) |
| .T | TAR Tape Archive Without Compression |
| .T | Tads Source File |
| .T | Notepad Text File (Microsoft Corporation) |
| .T | IRIS Spreadsheet (eurobraille) |
| .T | Timber Compiler Source Code (Timber Development Team) |
| .T | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .T | terse Language Source Code (JimNeiL) |
| .T$ | Modem Bitware Fax Disk5 File |
| .T$M | AVG Temporary File (AVG Technologies) |
| .T01 | TAXWIZ Deluxe Canadian Year 2001 Tax File (TAXWIZ) |
| .T01 | Tonline Netscape File |
| .T01 | TaxCut 2001 Tax Return File (H&R Block e-solutions) |
| .T02 | TaxCut 2002 Tax Return File (H&R Block e-solutions) |
| .T02 | Tonline Netscape File |
| .T02 | TAXWIZ Deluxe Canadian Year 2002 Tax File (TAXWIZ) |
| .T03 | TaxCut 2003 Tax Return File (H&R Block e-solutions) |
| .T04 | TaxCut 2004 Tax Return File (H&R Block e-solutions) |
| .T05 | TaxCut 2005 Tax Return File (H&R Block e-solutions) |
| .T06 | TaxCut 2006 Tax Return File (H&R Block e-solutions) |
| .T1 | EARS Component File |
| .T1 | Male MRI |
| .T10 | IRIG 106 Data Transfer File (Range Commanders Council) |
| .T2 | Male MRI |
| .T2 | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .T2 | TrueType Font |
| .T2K | Mirror Suite Image (Canfield Scientific, Inc.,) |
| .T2K | Teach2000 Document (bas groot) |
| .T2KS | Teach2000 Exam Results File (bas groot) |
| .T2KT | Teach2000 Exam File (bas groot) |
| .T2L | True2Life Scene (True2Life) |
| .T2T | Sonata CAD Modelling File |
| .T2T | Txt2tags Source Text Document |
| .T2W | NTgraph Turbo Pascal File |
| .T3 | Tarshare File |
| .T3001 | TARGET 3001! Circuit Design Template (Ing.-Buero FRIEDRICH) |
| .T32 | Drive Image5 File |
| .T3D | Swift 3D 3D Graphic (Electric Rain) |
| .T3D | Unreal Engine 3D Brush File (Epic Games, Inc.) |
| .T3D | Fifa2000 Environment Data |
| .T3D | Topaz 3D Model Data (Topaz 3D) |
| .T3M | Swift 3D Material (Texture) File (Electric Rain) |
| .T3X | TYPO3 Extension (The TYPO3 Association) |
| .T44 | dBASE IV Temporary File |
| .T4G | Tscad4 File |
| .T4L | Tscad4 Biblio File |
| .T64 | C64 Emulator Tape Image File (Read Only) |
| .T65 | PageMaker Template (Adobe Systems Incorporated) |
| .T98 | Kiplinger Tax Cut File |
| .T99 | Kiplinger Tax Cut File |
| .T?? | RAR Compressed File |
| .T?? | Ingres Table/Index File (Computer Associates International, Inc.) |
| .TA0 | TaxACT Tax Year 2000 Form (2nd Story Software, Inc.) |
| .TA1 | TaxACT Tax Year 2001 Form (2nd Story Software, Inc.) |
| .TA2 | TaxACT Tax Year 2002 Form (2nd Story Software, Inc.) |
| .TA3 | TaxACT Tax Year 2003 Form (2nd Story Software, Inc.) |
| .TA4 | TaxACT Tax Year 2004 Form (2nd Story Software, Inc.) |
| .TA5 | TaxACT Tax Year 2005 Form (2nd Story Software, Inc.) |
| .TA6 | TaxACT Tax Year 2006 Form (2nd Story Software, Inc.) |
| .TA8 | TaxACT Tax Year 1998 Form (2nd Story Software, Inc.) |
| .TA9 | TaxACT Tax Year 1999 Form (2nd Story Software, Inc.) |
| .TAAC | Sun TAAC File |
| .TAB | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TAB | TAB Separated File |
| .TAB | Stork Format Color Lookup Table |
| .TAB | Insight II Table File (Accelrys Software Inc.) |
| .TAB | MapInfo Table (Mapinfo Corporation) |
| .TAB | Lotus 1-2-3 Table |
| .TAB | Guitar Tablature File |
| .TAB | ArcView Lookup File (ESRI) |
| .TAB | ThinBASIC Adventure Builder Adventure Data (Catventure) |
| .TAB | Diabetes Mentor File |
| .TAB | GPS Pathfinder Office Station/Session Table (Trinble Navigation Limited) |
| .TAB | Notes 5 Full Text Index (IBM) |
| .TABL | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TABLE | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TABLE0 | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TABLE1 | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TABLE2 | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TABLE3 | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TABLE4 | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TABLE5 | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TABLE6 | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TABLE7 | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TABLE8 | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TABLE9 | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TABLES | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TABS | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TAC | JSim Time Activity Curve File (University of Washington) |
| .TACO | TacoSoft System File (FunkyToad Network) |
| .TAD | TA Demo Saved Game Data (Swedish Yankspankers) |
| .TAF | Rational ClearCase Transaction File (IBM) |
| .TAF | ADRIFT Text Adventure (ADRIFT) |
| .TAF | Birdstep Technologies RDM Database |
| .TAF | Tonline DB File |
| .TAG | DataFlex Query Tag Name (Data Access Corporation) |
| .TAG | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TAGS | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TAH | Turbo Assembler Help File (Borland Software Corporation) |
| .TAI | INMOS Transputer Development System Occam Analyse Info |
| .TAIKO | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TAITO | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TAK | TAK Lossless Compressed Audio (Thomas Becker) |
| .TAKENOFAB | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TAL | Typed Assembly Language File |
| .TAL | TypeAlign Text Illustration File (Adobe Systems Incorporated) |
| .TAL | Transaction Application Language Source Code |
| .TALE | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TALK | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TALK | Text to Speech |
| .TALK2 | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TAM | Tame Program Settings |
| .TAO | Duplicator CD File |
| .TAP | Oric Atmos Snapshot |
| .TAP | Wave Sound, Action Wave |
| .TAP | Tape File |
| .TAP | Geopath Editor File (SolutionWare Corporation) |
| .TAP | Embroidery File |
| .TAP | C64 Raw Cassette Tape Image |
| .TAP | Jupiter Ace Tape |
| .TAPE | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TAR | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TAR | Tape Archive File |
| .TARGA | Truevision Targa Bitmap |
| .TAS | ADRIFT Text Adventure Save (ADRIFT) |
| .TASK | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TASP | TASP Strategy Planner Data File |
| .TAT | Grafic TWAIN Toolkit File |
| .TAT | Topocad (Chaos Systems AB) |
| .TAT | Text File |
| .TAT | Geographic Text Attribute Table |
| .TAX | TurboTax Tax Return (Intuit Inc.) |
| .TAX2008 | TurboTax 2008 Tax Return (Intuit Inc.) |
| .TAXABLE | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TAXX | Dr. Tax Open XML Format (Ringler Informatik AG) |
| .TAZ | Compressed File |
| .TB | Rhino 3D Toolbar Collection File (post-Sept 2003) (Robert McNeel & Associates) |
| .TB | Tabbery Portable Virtual Desktop Work Environment (Tabbery) |
| .TB1 | Turbo C Font (Borland Software Corporation) |
| .TB2 | Turbo C Font (Borland Software Corporation) |
| .TB2 | TAS BOOKS 2 Accounting Backup File (TAS Software (a division of Sage (UK) Limited)) |
| .TB3 | VTune Performance Monitor Sampling Data File (Intel) |
| .TB5 | VTune Performance Monitor Sampling Data File (Intel) |
| .TBA | PASSOLO Licensed Translation Bundle |
| .TBA | DB/TextWorks Database Primary Textbase Definition (Inmagic, Inc.) |
| .TBALIC400 | PASSOLO Translation Bundle |
| .TBASIC | thinBasic GUI Script (thinBasic.com) |
| .TBASICC | thinBasic Console Script (thinBasic.com) |
| .TBASICCX | thinBasic Console Script (Obfuscated) (thinBasic.com) |
| .TBASICX | thinBasic GUI Script (Obfuscated) (thinBasic.com) |
| .TBB | The Bat! E-mail Hives (RITLABS) |
| .TBC | Formula 1 Car Race 2001 Season01 Vehicles File |
| .TBC | Inovate Tool Bar Customization |
| .TBC | IronCAD Tool Bar Customization |
| .TBD | Document System Document Source Code (DATAIR Employee Benefit Systems, Inc.) |
| .TBD | MSE File (Microsoft Corporation) |
| .TBD | Dansk System Industr Office Suite File (DSI - Dansk System Industri A/S) |
| .TBD | Visual Studio File (Microsoft Corporation) |
| .TBE | TMPGEnc List File |
| .TBF | Trellian Button Factory File |
| .TBF | Imavox TurboFax Faxs |
| .TBF | MicroImages Print Job Batch File (MicroImages, Inc.) |
| .TBG | TeamBG File |
| .TBH | Mah Jongg for Windows Tile Set |
| .TBH | Turbo Basic Help File |
| .TBI | The Bat! Hive Index (RITLABS) |
| .TBI | Image for Windows Disk Image File (TeraByte, Inc.) |
| .TBI | Fifa 2001 Be Command File |
| .TBK | Memo Backup |
| .TBK | Toolbook (SumTotal Systems, Inc.) |
| .TBK | The Bat! Backup Hives (RITLABS) |
| .TBK | ToolBook Instructor/Assistant Book (SumTotal Systems, Inc.) |
| .TBL | TrialDirector Toolbar File (inData Corporation) |
| .TBL | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TBL | Mozilla (Netscape) Excluded Fill Form Data Sites (Mozilla.org) |
| .TBL | Pro/ENGINEER (PTC) |
| .TBL | Starcraft Information Table |
| .TBL | PageMaker Import Mapping Table (Adobe Systems Incorporated) |
| .TBL | OS/2 Table of Values |
| .TBL | ArcView Geocoding Support Table (ESRI) |
| .TBL | Generic Table |
| .TBL | Insight II Graph Data File (Accelrys Software Inc.) |
| .TBM | Tableau Bookmark (Tableau Software, Inc.) |
| .TBM | DB/TextWorks Database Menu Screen (Inmagic, Inc.) |
| .TBP | Tabbery Plug-in (Tabbery) |
| .TBP | The Bat! Plug-in (RITLABS) |
| .TBP | TAS Books Accounts |
| .TBPA | Tektronix Bluetooth Protocol Analyzer |
| .TBR | SoftQuad XMetaL Toolbar/Menu Configuration |
| .TBR | Norton Desktop Custom Toolbar |
| .TBS | Chess Tablebase |
| .TBS | German Word Text Elements (Microsoft Corporation) |
| .TBS | VTune Performance Monitor (Intel) |
| .TBS | TuneUp Style Boot Screen (TuneUp Distribution GmbH) |
| .TBT | TabIt |
| .TBU | PASSOLO Translation Bundle |
| .TBULIC400 | PASSOLO Translation Bundle |
| .TBV | 3D Ultra Cool Data File |
| .TBX | Project Scheduler Table |
| .TBZ | BZIP2 Compressed TAR |
| .TB_ | Visc15 Adressen Setup File |
| .TC | Termcap |
| .TC | True Crypt Virtual Encrypted Disk (Container) (TrueCrypt Foundation) |
| .TC | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TC | Borland Configuration File (Borland Software Corporation) |
| .TC3 | The Cleaner Trojan Infested File (MooSoft Development LLC) |
| .TC6 | Calc602 Spreadsheet (Software602, Inc.) |
| .TCA | The Complete Animator Animation (Iota Software Limited) |
| .TCC | TimeCalc Classic Proprietary Formatted Data (ProSystems, Inc.) |
| .TCC | Turbo C GCC Include Standard File (Borland Software Corporation) |
| .TCD | TurboCalc Spreadsheet File |
| .TCD | TopCopy Wordprocessing Document (Toplevel Computing) |
| .TCF | Theme Park World Game File |
| .TCF | Clarion for Windows Topspeed Transaction Control File (SoftVelocity) |
| .TCH | Borland Help File (Borland Software Corporation) |
| .TCH | Complete Works Graph and Chart (Toplevel Computing) |
| .TCI | INMOS Transputer Development System Occam Configuration Info |
| .TCL | TextPad Clip Library (Helios Software Solutions) |
| .TCL | Tcl (Tool Command Language) Language Script |
| .TCL | SLIDE: Scene Language for Interactive Dynamic Environments File |
| .TCL~ | Tcl/tk File |
| .TCM | Total Club Manager Saved Game (Electronic Arts, Inc.) |
| .TCM | TWO COOL Cost of Ownership Model Database (Wright Williams & Kelly) |
| .TCM | INMOS Transputer Development System Occam Comment Text File |
| .TCO | T9000 Object Modules |
| .TCPSTREAM | Snort File |
| .TCR | TCR eBook |
| .TCS | TOPCALL Voicemail Player (TOPCALL) |
| .TCSH | Unix tcsh Shell Script |
| .TCT | BC31 Bin File |
| .TCT | TurboCAD Template |
| .TCT | Topocad (Chaos Systems AB) |
| .TCT | Championship Manager Game File |
| .TCT | InsideCAT Catalog File (VGTSoftware Devlopment) |
| .TCW | TurboCAD Drawing (IMSI/Design LLC) |
| .TCX | Garmin Training Center Database XML (Garmin Ltd.) |
| .TCX | TurboCAD Drawing as Text |
| .TD | Train Simulator Terrain Quad Tree (Microsoft Corporation) |
| .TD | Turbo Debugger Configuration File for DOS Version (Borland Software Corporation) |
| .TD0 | Teledisk Disk Image |
| .TD2 | Turbo Debugger Configuration File for Win32 (Borland Software Corporation) |
| .TD4 | RollerCoaster Tycoon Track Design (Atari) |
| .TD4 | ThumbsPlus Version 4.x+ Graphics Database |
| .TD6 | RollerCoaster Tycoon Track Design (Atari) |
| .TDA | Palm To Do File (Palm, Inc.) |
| .TDB | ACT! Transaction Data File (Best Software CRM Division) |
| .TDB | SlamDB Database (KGP Software) |
| .TDB | Thumbs Plus Database |
| .TDB | Complete Works Database (Toplevel Computing) |
| .TDB | TACT Database |
| .TDB | Ballance High Score Database (Atari) |
| .TDB | ProWORX Nxt Title Data (Schneider Electric) |
| .TDD | Tables Direct Template (MRDC Ltd) |
| .TDDD | Imagine Object File Format (Impulse, Inc.) |
| .TDE | Tableau Data Extract (Tableau Software, Inc.) |
| .TDF | Trace Definition File |
| .TDF | Typeface Definition File |
| .TDF | Speedo Typeface Definition File |
| .TDF | TheDraw Font |
| .TDF | TinyDisk Meta File |
| .TDF | Total Annihilation Features File (Cavedog Entertainment) |
| .TDF | ProWORX Nxt Title Data (Schneider Electric) |
| .TDF | TTDAlter Data File (Owen Rudge) |
| .TDF | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TDF | MicroSim PCBoard NC Drill Tool Definition File |
| .TDF | Setup Program Data |
| .TDH | Turbo Debugger Help File (Borland Software Corporation) |
| .TDI | TDI Explore & Alias Wavefront Image |
| .TDI | Explore (TDI) & Maya |
| .TDIM | Digital F/X |
| .TDK | Turbo Debugger Keyboard Record (Borland Software Corporation) |
| .TDL | FOCUS Three Dimensional Look File |
| .TDL | Stratum Library File |
| .TDL | Intuit de Online Dat File |
| .TDM | DIAdem Data Set (National Instruments Corporation) |
| .TDM | DIAdem XML Control File (National Instruments Corporation) |
| .TDMS | LabVIEW Test Data Exchange Stream (National Instruments Corporation) |
| .TDN | TreeDBNotes Database (SoftViewer) |
| .TDO | Compressed File |
| .TDO | Thumbs32 File |
| .TDP | Thedrums Compressed Audio File |
| .TDP | Serif DrawPlus Thumbnail |
| .TDPROJ | Tables Direct Project File (MRDC Ltd) |
| .TDR | Tina Pro for Windows V6.0+ Package Graphic/Results (DesignSoft, Inc.) |
| .TDR | Medlin Accounting Tax Deposit Records (Medlin Accounting) |
| .TDR | Contents of Arvid Tape |
| .TDS | Turbo Debugger Symbol Table (Borland Software Corporation) |
| .TDS | Triangle Digital Services Ltd. Embedded Computer Source Code |
| .TDS | Tableau Data Source (Tableau Software, Inc.) |
| .TDSL | TDSL Functional Testing DSL (Mark Fink) |
| .TDT | Daylight Fingerprint Data File |
| .TDT | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TDT | Sim Tower Tower File (Electronic Arts (Maxis)) |
| .TDT | ASCII Data File in CSV Format |
| .TDW | Turbo Debugger Configuration File (Borland Software Corporation) |
| .TDX | Tony Hawk's Pro Skater 3 Texture File (Neversoft Entertainment) |
| .TDX | DIAdem Bulk Binary Data Storage (National Instruments Corporation) |
| .TDY | TODAY or BuildPro Application File |
| .TE | Textease File |
| .TE2 | Conquest of the New World |
| .TEA | Tea Template Source File |
| .TEACH | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TEASERS | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TEASERS2 | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TEC | PDP-10 TECO Macro |
| .TECH | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TECHMARU | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TECHNOCONCERTO | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TED | Tribes 2 Game File (Sierra) |
| .TEE | TeeChart Office Graphic |
| .TEE | Trainz Engine Editor Trainz Engine Data (Swedish Train Workshops (STW)) |
| .TEF | Relisys Tefax Fax |
| .TEF | TablEdit Tablature |
| .TEI | TrackEye Image Sequence (Image systems AB) |
| .TEK | ASITIC Technology File (University of California at Berkeley) |
| .TEK | cadITEDcoax Project (OpenQuest) |
| .TEL | Telnet Host File |
| .TELL | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TEM | Badge Designer 2000 |
| .TEM | Icon Author Template |
| .TEM | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TEM | Turbo Editor Macro Language (Borland Software Corporation) |
| .TEM | RPG Toolkit Character File (Christopher Matthews) |
| .TEMP | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TEMP | Audiogalaxy Downloading Music File |
| .TEMPLATE | Worksheet Template (20-20 Technologies) |
| .TEMPLATE | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TEMPLATES | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TEN | TeeChart for .NET Chart Control Template (Steema Software) |
| .TEO | Vincent Draw Drawing |
| .TEO | TruTops Tube Tube Production Data (TRUMPF GmbH + Co. KG) |
| .TER | CorelFlow Line Terminator |
| .TER | Terragen Landscape File (Planetside Software) |
| .TER | Daylon Leveller Heightfield Data (Daylon Graphics Ltd.) |
| .TER | Black and White 2 Terrain Data (Lionhead Studios) |
| .TERMINATOR | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TERRAIN | Terragen Terrain (Planetside Software) |
| .TES | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TEST | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TEST1 | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TEST2 | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TESTS | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TET | Tetris Results |
| .TET | Textease Template |
| .TEX | Text File |
| .TEX | TeX |
| .TEX | Mackichan Scientific Notebook File |
| .TEX | Idealist Datasheet |
| .TEX | LaTeX Source (LaTeX3 Project) |
| .TEX | Croteam Texture File (Croteam Ltd.) |
| .TEX | Paint Shop Pro Texture (Corel Corporation) |
| .TEX | Concordance Full Text Database File |
| .TEX | Windows Hover Game Texture Picture |
| .TEX | Texture File |
| .TEX | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TEXEL | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TEXI | Texinfo Source (GNU Project) |
| .TEXI | TeX |
| .TEXINFO | Texinfo Source (GNU Project) |
| .TEXT | ASCII Text |
| .TEXT | yBook Text File (Spacejock Software) |
| .TEXTALKER | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TEXTBUILD | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TEXTCLIPPING | OS X Finder Dragged Text (Apple Inc.) |
| .TEXTDB | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TEXTEDIT | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TEXTTOOL | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TF | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TF | TinyFugue MUD Client Macro |
| .TF | Turbo Profiler Configuration File (Borland Software Corporation) |
| .TF | Inventor Transcript File (Autodesk, Inc.) |
| .TF10 | IRIG 106 Data Transfer File (Range Commanders Council) |
| .TF2 | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TFA | Aston Theme Configuration File (Gladiators Software) |
| .TFA | Turbo Profiler Area File (Borland Software Corporation) |
| .TFB | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TFC | Tobi's Floppy Cataloguer Catalog |
| .TFF | Complete Works Form Contents File (Toplevel Computing) |
| .TFH | Turbo Profiler Help File (Borland Software Corporation) |
| .TFM | Toplevel Form File (Toplevel Computing) |
| .TFM | FormTool Gold Form (IMSI/Design, LLC) |
| .TFM | TeX Font Metric File |
| .TFM | Twins File Merger |
| .TFM | Tagged Font Metric |
| .TFM | Transform Compressed File (Michael Bone) |
| .TFP | ProWORX Nxt Full Page Data File (Schneider Electric) |
| .TFR | IBM Client Access File Transfer |
| .TFR | Time-Frequency Representation |
| .TFR | Star Wars - Tie Fighter Game-Pilot File |
| .TFR | 4th Dimension Database Windows Formula Document (4D, Inc.) |
| .TFS | Turbo Profiler Statistic (Borland Software Corporation) |
| .TFT | Text Formatter Plus Text File Information (FormatBlue Software) |
| .TFW | ArcView World File For TIF Image (ESRI) |
| .TFW | Digital Raster Graphic World |
| .TFX | Traffix Traffic Analysis Software |
| .TFX | TFMX Audio |
| .TG | TuxGuitar Tablature File (TuxGuitar Team) |
| .TG | NRC Inspection Manual Technical Guidance |
| .TG | Test & Go Script (QualiControl) |
| .TG1 | On Target Project File |
| .TG4 | CCITT Group 4 Fax |
| .TGA | RealFlight Radio Control Trim Scheme (Knife Edge Software) |
| .TGA | Truevision Targa Graphic |
| .TGB | IPSec VPN Client VPN Configuration File (Sistech SA.) |
| .TGD | Nimbus 7 SAMS Data File |
| .TGD | Digital Tachograph Spanish Binary Data (Ministerio de Fomento (Spain)) |
| .TGD | Terragen 2 Technology Preview 1 World File (Planetside Software) |
| .TGF | Tree Generator 3D Tree File (Nicolas) |
| .TGF | MDL Molfile Transportable Graphics Format (MDL Information Systems, Inc.) |
| .TGF | Stonevoice Translator Tagfile (Stonevoice) |
| .TGH | Tiliagraph File |
| .TGH | TrueGas Host File |
| .TGI | Pbm File |
| .TGM | Nem's Mega 3D Terrain Generator |
| .TGS | GSTree Phylogenetic Tree Information (GeneStudio, Inc.) |
| .TGT | Corel40 Custom File |
| .TGT | Watcom C/C++ Individual Target (Sybase) |
| .TGW | Terragen World File (Planetside Software) |
| .TGWORLD | Terragen World (Planetside Software) |
| .TGZ | UNIX Tar File Gzipped |
| .TH | Javasoft JRE 1.3 Library File |
| .THANKS | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .THB | Hijack Clipart Thumbnail |
| .THB | KinuPix Preview THumBnail (KinuPix - COMIRAM Innovation) |
| .THD | Thread |
| .THE | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .THE | Plus Pack Desktop Theme (Microsoft Corporation) |
| .THEARTOFTUNES | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .THEME | Windows 7 Theme Packs (Microsoft Corporation) |
| .THEME | Windows 95 Desktop Theme |
| .THEME | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .THEME | Plus! Theme File (Microsoft Corporation) |
| .THEME2 | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .THEME3 | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .THESE | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .THEWITCHERSAVE | The Witcher Saved Game File (CD Projekt Sp. z o.o.) |
| .THE_YEAR_3000 | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .THINK | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .THIS | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .THK | Atari STE Sound File Format |
| .THL | PowerProducer Background Image Icon (CyberLink Corp) |
| .THM | Sony Ericsson Theme File (Sony Ericsson Mobile Communications AB) |
| .THM | Serif DrawPlus Theme |
| .THM | [Various] Thumbnail Bitmap Image |
| .THM | Video Thumbnail File |
| .THM | Clipart Gallery Database (Microsoft Corporation) |
| .THM | Canon G3 Digital Camera Thumbnail (Canon) |
| .THM | OpenOffice.org 1.1.x Configuration File (OpenOffice.org) |
| .THM | Olympus Digital Image Thumbnail (Olympus Corp.) |
| .THML | Theological HTML |
| .THMX | PowerPoint 2007 Theme/Template (Microsoft Corporation) |
| .THN | Graphics Workshop for Windows Thumbnail (Alchemy Mindworks) |
| .THN | GIF Construction Set Construction Data (Alchemy Mindworks) |
| .THNL | Graphics Workshop for Windows Thumbnail |
| .THOR | THOR Database Database Description |
| .THP | TeeGofer Help Project |
| .THP | TurboTax Text Strings (Intuit) |
| .THP | LiveMath Plug-in |
| .THR | Pro/ENGINEER (PTC) |
| .THR | PROGNOSIS Threshold Document File |
| .THREE | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .THRU | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .THS | WordPerfect Thesauraus (Corel Corporation) |
| .THT | Tralix Publish Tralix HTML Transport (Tralix Corp.) |
| .THU | Command and Conquer Renegade File |
| .THU | Firefox Bookmark Backup File |
| .THUMB | JAlbum Thumbnail Image (Datadosen.se) |
| .THX | Amiga THX Tracker Music (Amiga) |
| .TI | NRC Inspection Manual Temporary Instruction |
| .TI | Timber Compiler File (Timber Development Team) |
| .TI | Turing (Holt Software Associates, Inc.) |
| .TI | Homeworld Tactical Icon (Sierra Entertainment, Inc.) |
| .TIB | Acronis True Image Disk Image (Acronis Inc.) |
| .TIC | ALLFIX |
| .TIC | Lotto Pro 2002 Ticket |
| .TIC | Arcinfo Coordinates |
| .TICKET | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TID | AVCHD Thumbnail Index |
| .TID | IBM Voice Type Language Tasks File |
| .TIE | X-wing Alliance Game File |
| .TIF | BigTIFF Image |
| .TIF | Tagged Image Format File |
| .TIF | Digital Raster Graphic Image |
| .TIFENX | egis Encrypted TIF File (HiTRUST Inc.) |
| .TIFF | BigTIFF Image |
| .TIFF | Tagged Image Format File |
| .TIFFENX | egis Encrypted TIFF File (HiTRUST Inc.) |
| .TIG | Tiger Government Map File |
| .TII | TI Interactive Workbook (Texas Instruments Inc.) |
| .TIK | Script File for Game Textures |
| .TIL | Zelda Classic Tile (Armageddon Games) |
| .TIL | Buttonz & Tilez! Texture (FeldFunker.de) |
| .TIL | Togai InfraLogic Fuzzy-C Knowledge Base |
| .TIL | Tilia File |
| .TILE | Eclipse Tile Graphic (The Eclipse Foundation) |
| .TILES | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TILESET | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TIM | RPC III (MTS Systems Corporation) |
| .TIM | TIFF Image (rev 6) |
| .TIM | Playstation Game Texture Image (Sony Corporation of America) |
| .TIM | The Incredible Machine Level File |
| .TIMBALE | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TIME | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TIMES | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TIMPANI | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TIN | MapInfo Professional Transaction File (MapInfo Corporation) |
| .TINIES | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TINIES2 | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TIP | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TIP | Startup Tip File |
| .TIPS | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TIS | MahJongg Tile Set |
| .TIS | Infinity Game Engine Tileset Information (BioWare Corp.) |
| .TISV | WabbitDS Save File (Revolution Software) |
| .TIT | Train Simulator Track Interactives Table (Microsoft Corporation) |
| .TITLE | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TIVO | TiVo Video File (TiVo Inc.) |
| .TIX | Tix Widgets |
| .TIX | DivX Ticket (DivXNetworks, Inc.) |
| .TIX | ASA for UNIX Terminfo Extension |
| .TIX | Hybrid Graphics File |
| .TJF | Rational ClearCase Transaction File (IBM) |
| .TJF | VAXTPU Backup File |
| .TJL | Backup |
| .TJM | Crazy Talk Model File (Reallusion Inc.) |
| .TJM | Traffic Jammer Deluxe Map (Custom Level) File (Crystal Squid Ltd.) |
| .TJN | Karaoke Song (TAIJINMEDIA) |
| .TJS | TRACKJOY - Gravis Ultrasound Tracker Song |
| .TK | Tk Language Script |
| .TK | TK Solver File |
| .TK2 | Take Two/Easy CD Creator Backup (Sonic Solutions) |
| .TK3 | TK3 eBook (Night Kitchen, Inc.) |
| .TKB | TicketBench Data File |
| .TKC | tKC Cracking Tutorial File |
| .TKL | Takeoff Live PDF Working Data (E Job Cost LLC) |
| .TKM | Panasonic SD Voice Editor File |
| .TKM | tkMOO-light |
| .TKN | Liberty BASIC Application Distribution File (Tokenized Source) (Shoptalk Systems) |
| .TKN | Token Redeemer Download Token (Creo) |
| .TKO | DodgeView Take-Off File (The McGraw-Hill Companies, Inc.: McGraw-Hill Construction Dodge) |
| .TKP | MicroImages SML Script Standalone Application (MicroImages, Inc.) |
| .TKS | TK8 Safe Master Password File (B & M Konsultatsioonid, Inc.) |
| .TKT | TK Solver File |
| .TKW | TK Solver File |
| .TL5 | TimeLiner 5.0 Timeline (Tom Snyder Productions, Inc.) |
| .TLB | TrialDirector Toolbar File (inData Corporation) |
| .TLB | OLE Type Library (Type 1) |
| .TLB | Visual C++ Type Library (Microsoft Corporation) |
| .TLB | Portfolio Automation Interface (Extensis, Inc.) |
| .TLB | VAX Text Library |
| .TLB | Remote Automation OLE Truelib Files |
| .TLB | Borland Type Library (Borland Software Corporation) |
| .TLB | OLE Type Library (Type 2) |
| .TLB | Bubble Chamber Reference Table |
| .TLB | CHASE Evaluation and Audit System File (Health And Safety Technology And Management Ltd.) |
| .TLB | SPSS Type Library (SPSS, Inc.) |
| .TLC | Swat Compiled Tood Command Language Source |
| .TLD | Tag Library Descriptor |
| .TLD | Trellix Document Design (Interland, Inc.) |
| .TLD | Teledisk Disk Image |
| .TLE | dpsVelocity TimeLine File (Leitch Technology Corporation) |
| .TLE | NASA Two-Line Element Set |
| .TLF | Gear Track List File |
| .TLF | Opengl Stonehenge File |
| .TLF | Avant! Memory Compiler Memory Models Format |
| .TLF | Turnpike SCORE Link File |
| .TLF | Short Message Service File |
| .TLG | Trellix WebGem |
| .TLG | QuickBooks Transaction Log File (Intuit Inc.) |
| .TLG | Beast 2.02 Trojan File |
| .TLH | Adder100 Source Code |
| .TLI | Adder100 Source Code |
| .TLK | Infinity Game Engine Lookup Table (BioWare Corp.) |
| .TLK | Hand of Fate Archive |
| .TLK | BioWare Aurora Engine Talk Table (BioWare Corp.) |
| .TLK | Lands of Lore Archive |
| .TLM | Timeline Maker Timeline (Progeny Software Inc.) |
| .TLO | SPSS User Table Lookup (SPSS, Inc.) |
| .TLP | Tunnelier Profile (Bitvise Limited) |
| .TLP | Project Timeline File (Microsoft Corporation) |
| .TLR | Ccs-lib.2 Acs File |
| .TLS | Piles'O'Tiles Information File (F1 Software) |
| .TLS | Zortech 21 Readme File |
| .TLS | Timeless Time & Expense |
| .TLSET | Text Locker Customization (Settings) File (BINProjects) |
| .TLT | AverTV Go 007 Teletext File (AVerMedia Technologies, Inc.) |
| .TLT | Topocad (Chaos Systems AB) |
| .TLT | Trellix Web Design Document Template (Interland, Inc.) |
| .TLT | TList Data File |
| .TLV | TruLASER View Geometry Data (Magestic Systems, Inc.) |
| .TLW | TLWallace.NET Document (TLWallaceNET Publishing Inc.) |
| .TLX | AverTV Go 007 Teletext File (AVerMedia Technologies, Inc.) |
| .TLX | caseCATalyst (Stenograph, L.L.C.) |
| .TLX | Trellix Web Design Document (Interland, Inc.) |
| .TLX | CuteSITE Builder File |
| .TLX | Goldwave 402 File |
| .TLX | Technics Sx KN 6000 Keyboard Text Lyrics File |
| .TLX | Telex |
| .TLX | [Various] Dictionary File (Wintertree Software Inc.) |
| .TLY | Photoshop Elements Backup Catalog File (Adobe Systems Incorporated) |
| .TLZ | lzip Compressed File (Antonio Diaz Diaz) |
| .TL_ | Doko Compressed Install File |
| .TM | PCCharge File (VeriFone) |
| .TM | TM Player (Techsiti Media) |
| .TM | Team Tracker Record File |
| .TM | HP Internet Advisor Capture File |
| .TM | Technics Keyboard Sound Memory File |
| .TM | EOSAT Landsat Thematic Mapper Bitmap Data |
| .TM | tecmail Configuration (teclan) |
| .TM2 | PlayStation2 TIM2 Bitmap (Sony) |
| .TMA | DCI TradeManager Catalog Archive |
| .TMB | Movie Magic Screenwiter Screenwriter Document Timed Backup (Write Brothers, Inc.) |
| .TMB | Tmx Editor User File |
| .TMB | Timbuktu Pro Connection Document |
| .TMC | DCI TradeManager Catalog Archive |
| .TMCONFIG | TaskMerlin Personal Configuration Settings (Interfathom) |
| .TMD | Lotus TvMap Document |
| .TMD | Timeless Time & Expense Multi-user Time & Expense Data File (MAG Softwrx, Inc.) |
| .TMD | Tomahawk Word Processing File (NativeWinds, LLC) |
| .TMD | World Machine Data File (Stephen Schmitt) |
| .TMD | TextMaker Document (SoftMaker Software GmbH) |
| .TMDB | TaskMerlin Task Management Database (Interfathom) |
| .TMDBCONFIG | TaskMerlin Database Settings (Interfathom) |
| .TME | EdgeCAM Licensing Data Ffile (Pathtrace Engineering Systems) |
| .TMF | TM Player (Techsiti Media) |
| .TMF | WordPerfect Tagged Font Metric File (Corel Corporation) |
| .TMG | The Marketing Game File |
| .TMI | TCM-3 (Thin Client Media-3) Encoded Video File (Thin Multimedia, Inc.) |
| .TMIMAGES | TaskMerlin Database Image Settings (Interfathom) |
| .TMK | Turbo Pascal TP_tour File (Borland Software Corporation) |
| .TML | WZ Editor Document or Macro (Village Center, Inc.) |
| .TML | Table Template Object (Adobe Systems Incorporated) |
| .TML | AIRO Timeline File (Odetics Broadcast) |
| .TML | PADGen (Associaton of Shareware Professionals) |
| .TMO | Zortech C++ Global Optimizer Output File |
| .TMP | NeroAudio Peak File (Nero AG) |
| .TMP | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TMP | AZZ Cardfile RTF Data (Antanas Zdramys) |
| .TMP | AZZ Cardfile Text Data (Antanas Zdramys) |
| .TMP | Norton AntiVirus Backed Up File |
| .TMP | Temporary File/Folder |
| .TMP | IMail Server Web Messaging or Mail to Beeper/Pager or Mail to Fax File (Ipswitch, Inc.) |
| .TMPL | formVista Template (DTLink LLC) |
| .TMPL | eMule Web interface Template (eMule Team) |
| .tmpl | UNIX Template File |
| .TMPL | Website META Language Template |
| .TMPLG | TimeMap Send To TimeMap Plug-in (LexisNexis) |
| .TMPRTF | TimeMap Portable Format (LexisNexis) |
| .TMQ | TestMaster Question Set (Bob Beveridge) |
| .TMR | Simpsons Cartoon Studio File |
| .TMREG | TaskMerlin Registration File (Interfathom) |
| .TMS | Timeless Time & Expense Multi-user Settings File (MAG Softwrx, Inc.) |
| .TMS | Telemate Script |
| .TMTERM | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TMV | TimeMap Visual Format File (LexisNexis) |
| .TMVT | TimeMap Template File (LexisNexis) |
| .TMW | TRADOS Translator's Workbench |
| .TMW | Timeless Time & Expense Multi-user Security File (MAG Softwrx, Inc.) |
| .TMX | Translation Memory Export File Format (The Localization Industry Standards Association (LISA)) |
| .TMZ | MediGraph Compressed Database (MediGraph, Inc.) |
| .TN1 | Tiny Graphic |
| .TN2 | Tiny Graphic |
| .TN3 | Tiny Graphic |
| .TNA | Topocad (Chaos Systems AB) |
| .TNC | SuperJPG ThumbNail Cache File (midnightblue.com) |
| .TNC | TI-Nspire CAS OS Image (Texas Instruments Incorporated) |
| .TNC | TI-Nspire OS Image (Texas Instruments Incorporated) |
| .TNEF | Transport Neutral Encapsulation Format File (Microsoft Corporation) |
| .TNF | Transport Neutral Encapsulation Format File (Microsoft Corporation) |
| .TNG | Audio Utility Tuningwrench Compressed File |
| .TNG | Yet Another Tengwar Tool (YaTT) Tengwar Text File |
| .TNI | Virtua Tennis Menufiles Common File |
| .TNK | TrunkTrac Scanner Info |
| .TNK | Nimbus 7 SAMS Data File |
| .TNK | OMEGA Tank File |
| .TNL | Thumbnail |
| .TNO | TI-Nspire Handheld Operating System Image (Texas Instruments Incorporated) |
| .TNS | TI-Nspire Document (Texas Instruments Incorporated) |
| .TNT | TurnTool (TurnTool ApS) |
| .TNV | Bitware Fax File |
| .TNX | PCLTool Text Extraction File (Page Technology Marketing, Inc.) |
| .TNY | Tiny Graphic |
| .TO | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TOAD | www.FunkyToad.net System File (www.FunkyToad.net) |
| .TOAST | Toast CD Image File (Sonic Solutions) |
| .TOAST | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TOC | LaTeX Table of Contents |
| .TOC | KDevelop Documentation Table of Contents (KDevelop Team) |
| .TOC | FrameMaker (Adobe Systems Incorporated) |
| .TOC | Eudora Table Of Contents |
| .TOC | World of Warcraft Add-on Information File |
| .TOCATTA | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TOD | JVC Everio Digital Video File (JVC Americas Corp) |
| .TODO | Simple Project ToDo Database (Igor Ješe) |
| .TOE | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TOF | Mr. Photo Temporary Thumbnail File (NewSoft) |
| .TOGRTNS | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TOH | Infinity Game Engine Talk Table Override Header (BioWare Corp.) |
| .TOK | C++ Ver. 4.x External Token (Borland Software Corporation) |
| .TOL | Kodak Photoenhancer |
| .TOL | Tonline Bsw4 Tool File |
| .TOL | AOL Tool File (America Online, Inc.) |
| .TOM | Total Office Manager (TOM) Company File (Easy Street, Inc.) |
| .TOM | MediGraph Database (MediGraph, Inc.) |
| .TOM | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TOMSDINER | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TON | Wave Siggen-2.1 File |
| .TON | FMS32-PRO ZVEI Protocol File (HeiRueSoft) |
| .TONE | SOFT-TECH Alarm Clock and Raceway |
| .TONER | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TONES | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TOO | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TOO | Asm Objasm |
| .TOOL | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TOOL219 | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TOOLBOX | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TOOLS | DOS DJGPP Tools File |
| .TOOLS | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TOP | Topocad Drawing (Chaos Systems AB) |
| .TOP | INMOS Transputer Development System Occam Top Level File |
| .TOP | QuickVerse File |
| .TOP | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TOP | Waltop Digital Ink-pad Graphic (Waltop International Corporation) |
| .TOP | NetSim Topology Diagram (Boson Holdings, LLC.) |
| .TOP | Evernote Handwritten Notes and Sketches (Evernote Corporation) |
| .TOPAZ3D | Topaz 3D Model Data (Topaz 3D) |
| .TOPC | TopicCrunch Stored Search Project (3D-Scape Limited) |
| .TOPICS | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TOR | Guitar Musik Trainer REGISTER.DS File |
| .TOR | Lomax Software Info File |
| .TOR | NBA 99 Art Ingame Anims File |
| .TORNADOS | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TORRENT | BitTorrent Metainfo File (Bram Cohen; now maintained by BitTorrent, Inc.) |
| .TOS | The Only Sheet PLUS [TOS+] Data File (Richard Taillon) |
| .TOS | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TOS | Atari Executable (Atari) |
| .TOT | Infinity Game Engine Talk Table Override Text (BioWare Corp.) |
| .TOT | Telelogic Option Templates |
| .TOUR | Vadosity Toolkit Tour (Vadosity Inc.) |
| .TOUR | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TOUR-PROJECT | Vadosity Toolkit Project File (Vadosity Inc.) |
| .TOURNARIE1 | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TOURNARIE2 | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TOURNARIE3 | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TOWER | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TOY | Catz & Dogz Toy File (Ubisoft Entertainment) |
| .TO_BE_DELETED | No Specific Program |
| .TP | Turbo Profiler Session-state File (Borland Software Corporation) |
| .TP | Turbo Pascal Configuration File (Borland Software Corporation) |
| .TP | EROSION 3D Relief Parameters |
| .TP | TinkerPlots Document (Key Curriculum Press) |
| .TP | PerfectTablePlan Table Seating Plan (Oryx Digital Ltd.) |
| .TP3 | Harvard Graphics Template (Harvard Graphics) |
| .TP4 | RollerCoaster Tycoon Track Design (Atari) |
| .TP6 | Top Producer System 6/6i Data |
| .TPA | Corel Graphics10 Custom File |
| .TPA | GROMACS Portable Binary Run Input File |
| .TPA | Palm Data Import Template (Palm, Inc.) |
| .TPB | GROMACS Portable Binary Run Input File |
| .TPB | HiJaak PCL Soft Font File Backup |
| .TPC | Topicscape Placeholder File (3D-Scape Limited) |
| .TPC | TokenPeek File |
| .TPC | Rtfgen File |
| .TPD | TreePad Hypertext Database File (Freebyte) |
| .TPD | EDIUS EffectPreset File (Thomson Inc dba Grass Valley) |
| .TPE | Clarion for Windows Example File (SoftVelocity) |
| .TPF | HiJaak PCL Soft Font File |
| .TPG | TREAT Project File (Taitem Engineering) |
| .TPG | TOPO! Sync Data File (National Geographic) |
| .TPH | Turbo Pascal Help File (Borland Software Corporation) |
| .TPI | Visual Test Shell File |
| .TPI | Tonline File |
| .TPJ | TestStand Project |
| .TPK | Tochal Package |
| .TPL | SignIQ Template (ImpulseLogic) |
| .TPL | Arena Template Source Code (Rockwell Automation, Inc.) |
| .TPL | Ulead iPhoto Express Template (Corel Corporation) |
| .TPL | Timeslips TSImport Template (Peachtree Software) |
| .TPL | PHP Development Template |
| .TPL | BestAddress HTML Editor Standard Template (Multimedia Australia Pty. Ltd.) |
| .TPL | Nintendo Texture Pack Library (Nintendo) |
| .TPL | MicroImages Text Template (MicroImages, Inc.) |
| .TPL | RadASM Template File (KetilO) |
| .TPL | TeamSite Presentation Template (Interwoven, Inc.) |
| .TPL | TextBridge Template |
| .TPL | Page Express Template |
| .TPL | Photoshop Tool Preset File (Adobe Systems Incorporated) |
| .TPL | Canvas 7 Template |
| .TPL | Access Workflow Designer (Microsoft Corporation) |
| .TPL | ACT! Document Template (Best Software CRM Division) |
| .TPL | DataCAD Template File (DATACAD LLC) |
| .TPL | RapidForm Collection File (INUS Technology, Inc.) |
| .TPL | Turbo Pascal Resident Unit (Borland Software Corporation) |
| .TPL | Cakewalk Audio Template File (Cakewalk) |
| .TPL | NoteTab Template |
| .TPL | fKey Template Designer Template File |
| .TPL | Harvard Graphics Template (Harvard Graphics) |
| .TPM | Crazy Talk Model File (Reallusion Inc.) |
| .TPM | TextPad Macro |
| .TPO | Arena Template File (Rockwell Automation, Inc.) |
| .TPO | TOPO! mapXchange Document (National Geographic) |
| .TPP | Greyline Universal Software PLC Protocol Definition File (Cinncinati DynaComp) |
| .TPP | Teleport Pro Project (Tennyson Maxwell Information Systems, Inc.) |
| .TPP | TOPO! Preferences (National Geographic Maps) |
| .TPP | Turbo Pascal Protected Mode Unit (Borland Software Corporation) |
| .TPP | TypePlus File |
| .TPQ | TOPO!Pro Map Image (National Geographic Maps) |
| .TPR | Together Project Definition |
| .TPR | TIGCC IDE Project File (TIGCC Team) |
| .TPR | TMPEG Enc Video Conversion Project File |
| .TPR | Clarion for Windows Repaired Data File (SoftVelocity) |
| .TPR | GROMACS Portable Binary Run Input File |
| .TPS | Multi Channel Measurement Setting and Data Storage File (TiePie engineering) |
| .TPS | Crazy Talk Expression Script File (Reallusion Inc.) |
| .TPS | Micro Perfect Products |
| .TPS | Clarion for Windows Topspeed Data File (SoftVelocity) |
| .TPS | Supposed Compressed Torrent File |
| .TPT | ThumbsPlus Thumbnail Template (Cerious Software, Inc.) |
| .TPT | PCLTool Transformation Parameter Table (Page Technology Marketing, Inc.) |
| .TPT | Sidekick 98 File |
| .TPU | Turbo Pascal Compiled Unit (Borland Software Corporation) |
| .TPU | Enable Teleprocessing |
| .TPU | VAXTPU Command File |
| .TPU | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TPW | Turbo Profiler for Windows Session-state File (Borland Software Corporation) |
| .TPX | Photo Express Template (Ulead Systems) |
| .TPZ | Home Inspector Pro Inspection Template (Home Inspection Software) |
| .TPZ | Compressed File |
| .TQD | Torq-DJ Song Information File (Avid Technology, Inc.) |
| .TQI | Insure++ File |
| .TQL | Insure++ File |
| .TQL | SQL Server Query Analyzer Header File (Microsoft Corporation) |
| .TQL | Tree Query Language File |
| .TQS | Insure++ File |
| .TR | TomeRaider Compressed eBook File (Proporta) |
| .TR | Turbo Debugger Session-state Settings (Borland Software Corporation) |
| .TR | Manual Page Input to UNIX troff -man Command |
| .TR1 | IBM Voice Type Language Addword File |
| .TR1 | Novell LANalyzer Capture File |
| .TR2 | Tomb Raider 2 Playable Level File (Core Design) |
| .TR2 | Turbo Debugger Session-state Settings (Borland Software Corporation) |
| .TR3 | TomeRaider eBook (Yadabyte Websites) |
| .TR4 | Tomb Raider - The Last Revelation Game File (Eidos Interactive Ltd.) |
| .TR5 | Tree Professional File |
| .TR5 | TRIM Reference File (TOWER Software) |
| .TRA | Traverse PC Desktop (Traverse PC, Inc.) |
| .TRACE | Zope 3 Strace Log (Zope Corporation) |
| .TRACE | Debugging File |
| .TRACE | WebSTAR Mail Server Error File |
| .TRACE | Telcordia Software Visualization and Analysis Toolsuite |
| .TRACE | TcpDump Output File |
| .TRACE | ECXpert Debugging File |
| .TRACING | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TRACK0 | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TRACKER | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TRACKER2 | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TRACKS | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TRADALOG | Tradalog (TradeDesk) Catalog File (Global TradeDesk Technology Pty Limited (Australia)) |
| .TRADE | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TRANS | Amaya |
| .TRASHINFO | Trash Storage Metadata |
| .TRAVEL | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TRC | Oracle SQL*Net Trace Debug File |
| .TRC | Sniffer (DOS) Capture File (Network Associates Technology, Inc.) |
| .TRC | Times Reader Annotated Article (New York Times) |
| .TRC | a-squared Anti-Malware Checksum for Signatures Files (Emsi Software GmbH) |
| .TRC | True BASIC Compiled Code (True Basic Inc.) |
| .TRC | FCAccess Analyzer Trace File (Ancot Corporation) |
| .TRC | Power CTrace Debug Support File |
| .TRD | TR-DOS Floppy Image |
| .TRD | Lexicon Dictionary File (Lingea) |
| .TRD | TR Assistant Dictionary |
| .TRD | TrID Definitions Package (Marco Pontello) |
| .TRE | Kith and Kin Export File |
| .TRE | TreeAge Decision Tree File |
| .TRE | PC Tools Directory Tree |
| .TRE | VisiRex SDK Tree Function File |
| .TRE | Wing Commander Series Movie/Game File |
| .TRE | EA SPORTS File |
| .TRE | Star Wars Galaxies TRE Archive |
| .TREE | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TREK | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TRF | Train Simulator Traffic Pattern File (Microsoft Corporation) |
| .TRF | LFToolkit Transformation Rules File |
| .TRF | DocuMagix File |
| .TRG | XMap Flight Plan or Flight Plan Statistic File (Delorme) |
| .TRG | Symantec LiveUpdate File (Symantec Corporation) |
| .TRH | Traverse PC Handheld Survey Data (Traverse PC, Inc.) |
| .TRI | 3D Space Triangulated Head Surface (Neuroscan) |
| .TRI | Alias Triangle |
| .TRI | Cart3D Triangulation |
| .TRI | LiveUpdate Product Update List (Symantec Corporation) |
| .TRI | Quake texmake Utility Output |
| .TRI | Ribbons FRODO Contours (Triangles) |
| .TRI | Trigram File |
| .TRIAL | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TRIANG | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TRIF | Tiled Raster Interchange Format Bitmap |
| .TRIPPER | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TRIX | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TRK | GeneRally Track File |
| .TRK | Track |
| .TRK | IL2 Track File (Ubisoft Entertainment) |
| .TRK | Train Dispatcher Railroad Centralized Traffic Control Simulation (Signal Computer Consultants) |
| .TRK | SeeYou Flight Data (Naviter) |
| .TRK | Kermit Script File |
| .TRK | Mixman Studio Track |
| .TRK | Fugawi Global Navigator Tracklog File (Northport Systems Inc.) |
| .TRK | RollerCoaster Tycoon Track Model (Atari) |
| .TRK | Garmin GPS PCX5 Track File (Garmin Ltd.) |
| .TRK | LP Ripper Track Analysis (CFB Software) |
| .TRK | Magellan GPS Waypoint File (Thales Navigation, Inc.) |
| .TRK3 | Rail3D 2KD/2k3 Layout File |
| .TRL | Topocad (Chaos Systems AB) |
| .TRL | Tracklogs Digital Mapping Track Log (TrackLogs) |
| .TRM | Windows 3.x Terminal Configuration Settings |
| .TRM | Trim High-compression Lossless 8 to 32 bit Truecolor Image File |
| .TRM | Terminal Settings |
| .TRN | Payroll Mate 2008 Current Year Transactions (RealTaxTools.com) |
| .TRN | Quattro Translation Support File (Corel) |
| .TRN | Translation |
| .TRN | TextBridge Training Data |
| .TRN | STN Express Transcript Text File |
| .TRN | SQL Server Transaction Backup (Microsoft Corporation) |
| .TRN | MegaHAL Training File (Ai Research) |
| .TRN | NSME Trains Screen Saver Train File (Oberon Medialab) |
| .TRN | PageMaker (Adobe Systems Incorporated) |
| .TRN | MKS Source Integrity Project Log |
| .TRN | VGA Planets Game Turn File (Tim Wisseman) |
| .TRN | Medlin Accounting Current Year Transactions (Medlin Accounting) |
| .TRO | IBM Voice Type Language Vocabels File |
| .TRO | Anti-Trojan |
| .TRP | Tripmaker File |
| .TRP | Watcom BINW File |
| .TRP | Ports of Call Saved Game (Rolf-Dieter Klein) |
| .TRP | Topocad (Chaos Systems AB) |
| .TRP | Kaon DVB Transport Stream |
| .TRP | ENM or EPLRS Network Manager/Monitor EPLRS Network Activity Logging Trap File (Raytheon Company) |
| .TRS | Micrografx Executable File |
| .TRS | EROSION 3D Temporal Event File |
| .TRS | TrIDNet Serialized Definitions Package (Marco Pontello) |
| .TRS | TURBU Editor RPG Script file (Mason Wheeler) |
| .TRT | Team Sports Scheduling System Report Template (Galactix Software) |
| .TRT | DLocalizer Translations File (Cybercom Group) |
| .TRU | TruSys System Comparison File |
| .TRU | True BASIC Source Code (True Basic Inc.) |
| .TRUETYPE | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TRUMPET | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TRV | Traverse PC Desktop Survey Data (Traverse PC, Inc.) |
| .TRV | Track Record Viewer TRV/TRVX Definition |
| .TRW | Turbo Debugger Session-state Settings (Borland Software Corporation) |
| .TRX | Track Record Viewer TRV/TRVX Index |
| .TRX | Emerald PC Authorize Batch Transaction File |
| .TRX | PASSOLO Translation File |
| .TRX | VisiTrax Music Library Database (Synapsa Productions) |
| .TRY | Trypigon Text (620 Team) |
| .TRZ | Accusoft Alldemo File |
| .TRZ | Norton AntiVirus Update File (Symantec Corporation) |
| .TS | Qt Translation Source File (Qt Software) |
| .TS | Tune Smithy File (Robert Inventor) |
| .TS | Transport Stream MPEG-2 Video Stream |
| .TS07 | TacoSoft System Demo and User Stash (FunkyToad Network) |
| .TS2 | Time Stamp Project Information File (Syntap Software) |
| .TSB | 3dMD or 3Q Viewer 3D Image (3Q Technologies.) |
| .TSB | TriSpectives 3D Drawing |
| .TSB | Trabalph Software Program Compressed Trabalph Software File (Trabalph Software) |
| .TSC | Win Help Related File |
| .TSC | Top Secret Crypto Gold Encrypted File (TAN$TAAFL Software Company) |
| .TSC | Tina Pro for Windows V6.0+ Package Schematics (DesignSoft, Inc.) |
| .TSCE | TextShield Zip-compressed .RTF File |
| .TSD | Tamino Schema Editor |
| .TSF | ProWORX Nxt Symbol File (Schneider Electric) |
| .TSF | Terrornet Game Save File (Jenicaro/Terrornet Series) |
| .TSF | Strater Template File (Golden Software, Inc.) |
| .TSF | TASP Save Strategy File |
| .TSG | Enable File |
| .TSH | Cenix Audio File (Cenix Digicom Co., Ltd.) |
| .TSH | Creatacard Transfer Project (Broderbund) |
| .TSIG | Top Secret Crypto Gold Detached Signature File (TAN$TAAFL Software Company) |
| .TSK | Skins (Themes) for Pocket PC PDAs |
| .TSK | PhotoImpact Quick Command |
| .TSK | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TSK | Trend Pc-cillin 2000 File |
| .TSL | TeamSource File (Borland Software Corporation) |
| .TSL | Cenix Audio File (Cenix Digicom Co., Ltd.) |
| .TSM | Turbo Assembler Manual for OS/2 Version (Borland Software Corporation) |
| .TSN | MIDI File |
| .TSO | TSO Editor Tactical Situation Object XML file (OASIS) |
| .TSO | NX2 3D Faceted Spacial Volume (UGS Corp.) |
| .TSP | Windows Telephony Service Provider (Microsoft Corporation) |
| .TSQ | ODBC Script |
| .TSR | INMOS Transputer Development System Occam Program Source |
| .TSR | Telescope Search Results File (Alkali Software ULTD) |
| .TSS | Complete Works Spreadsheet (Toplevel Computing) |
| .TSS | Team Sports Scheduling System Project File |
| .TST | RPG Toolkit Tile File (Christopher Matthews) |
| .TST | Pro/ENGINEER Temporary File (PTC) |
| .TST | WordPerfect Printer Test File (Corel Corporation) |
| .TST | TextShield Template |
| .TST | ExamView Test File (FSCreations, Inc.) |
| .TST | TestGen Data (Pearson Education) |
| .TST | TAC Compressed Audio (K+K Research) |
| .TST | LinkWare Test Database (Fluke Networks) |
| .TSTREAM | SwarmPlayer Video Stream Control File (p2p-next Consortium) |
| .TSV | Tab-Separated Values |
| .TSW | TestStand Workspace |
| .TSX | Team Sports Scheduling System XML Project File |
| .TSY | Topocad (Chaos Systems AB) |
| .TSZ | TeamSpot Configuration (Tidebreak, Inc.) |
| .TT | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TT | Star Trek Armada Game Techtree Information |
| .TT | ThinkTank Outliner |
| .TT | True Type Font File |
| .TTA | TTA (True Audio) Free Lossless Audio Codec (True Audio Software) |
| .TTC | TrueType Font Collection |
| .TTC | TrueType Compressed Font |
| .TTCTMR | TikTokCook Timer Data File (MGCSoft) |
| .TTE | TextTransformer (Detlef Meyer-Eltz) |
| .TTF | TrueType Font |
| .TTF | Quartus II Tabular Text File (Altera Corporation) |
| .TTI | Beast 2.02 Trojan File |
| .TTK | Alchemy Catalyst Translation Toolkit |
| .TTKGP | TatukGIS Editor/Viewer Project File (TatukGIS) |
| .TTL | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TTL | Tera Term Macro File |
| .TTM | TeleType GPS Location File (TeleType GPS) |
| .TTN | Tartan Generator Saved Tartan (Clan Heritage (trading division of Viking Technology Ltd.)) |
| .TTO | IBM Client Access File Transfer Description |
| .TTP | Atari TOS Executable With Parameters (Atari) |
| .TTP | Telelogic Tau Project |
| .TTP | TextTransformer Project (Detlef Meyer-Eltz) |
| .TTP | TimeTraces Project (TwoLogs) |
| .TTR | TextTransformer Exported Production (Detlef Meyer-Eltz) |
| .TTR | TrueType Font |
| .TTR | TeeTree Office File |
| .TTT | TextTransformer Exported Test (Detlef Meyer-Eltz) |
| .TTT | TestTrack Pro Database File (Seapine Software, Inc.) |
| .TTW | Telelogic Tau Workspace |
| .TTX | Technics Keyboard Long Filenames File |
| .TTX | Crystal Reports Data Connection File (Crystal Decisions) |
| .TTX | TextTransformer Exported Token (Detlef Meyer-Eltz) |
| .TTX | TabTrax Tab File (2112design Inc) |
| .TTX | TRADOS TagEditor TRADOStag XML (SDL) |
| .TTY | Dreamweaver 3 Trial File |
| .TT_ | Compressed TTF File |
| .TU | Turing (Holt Software Associates, Inc.) |
| .TUB | Paint Shop Pro Tube File (Corel Corporation) |
| .TUD | The Ultimate Draw Document |
| .TUD | Thumbs Plus Viewer Graphics |
| .TUDUMO | Tudumo Tag-Based To-Do List (Thinkmo Trading CC) |
| .TUE | Firefox Bookmark Backup File |
| .TUL | Turbulance Level File (Fishstick Games) |
| .TUN | Total Uninstall System Changes Log (Gavrila Martau) |
| .TUN | Lego Racers Music File (Lego Group) |
| .TUN | Fifa World Cup File |
| .TUNE | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TUNEAO | Aleph One Music (Marathon Open Source) |
| .TUO | Thumbs Plus Viewer Graphics |
| .TUR | Turing (Holt Software Associates, Inc.) |
| .TUR | Webalizer Language File |
| .TURBOC3 | Turbo C Make File (Borland Software Corporation) |
| .TURCA | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TUT | Tutorial |
| .TUT | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TUTORIAL | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TUW | Office File (Microsoft Corporation) |
| .TUX | Tutorix Tutorial File (Mindleads Technology) |
| .TV | Paradox Table View Settings |
| .TV | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TV1 | WordPerfect Overflow File Above Document 1 Insert Point (Corel Corporation) |
| .TV2 | WordPerfect Overflow File Above Document 2 Insert Point (Corel Corporation) |
| .TV3 | WordPerfect Overflow File Above Document 3 Insert Point (Corel Corporation) |
| .TV4 | TValue Project (TimeValue Software) |
| .TV4 | WordPerfect Overflow File Above Document 4 Insert Point (Corel Corporation) |
| .TV5 | WordPerfect Overflow File Above Document 5 Insert Point (Corel Corporation) |
| .TV6 | WordPerfect Overflow File Above Document 6 Insert Point (Corel Corporation) |
| .TV7 | WordPerfect Overflow File Above Document 7 Insert Point (Corel Corporation) |
| .TV8 | WordPerfect Overflow File Above Document 8 Insert Point (Corel Corporation) |
| .TV9 | WordPerfect Overflow File Above Document 9 Insert Point (Corel Corporation) |
| .TVC | Winamp TV TV Channel Data File (Branimir Lambov) |
| .TVC | Dungeon Siege File (Microsoft Corporation) |
| .TVC | NK - BMP/TV Format Lossless Compressor Bitmap |
| .TVD | Yamaha Custom Drum Voice (Yamaha Corporation of America) |
| .TVF | dBASE Table View Settings |
| .TVGSKIN | TVgenial Skin (TVgenial) |
| .TVI | Yamaha Custom Voice Library Voice (Yamaha Corporation of America) |
| .TVI | Terminal Velocity Game Animation File |
| .TVL | TurboTax (Intuit) |
| .TVM | TVMconv |
| .TVN | Yamaha Custom Individual Voice (Yamaha Corporation of America) |
| .TVO | TeveoLive |
| .TVP | TVP Animation Animation Data File (TVPaint Developpement) |
| .TVP | NVIDIA Graphic Card Update File (NVIDIA Corporation) |
| .TVQ | EasyNN-plus Neural Network Format (Neural Planner Software Ltd) |
| .TVR | Boot File |
| .TVS | VectorMAX Streaming Video |
| .TVS | TeamViewer Session (TeamViewer GmbH) |
| .TVT | RealPlayer |
| .TVVI | InterVideo WInDVR |
| .TWB | Tableau Workbook (Tableau Software) |
| .TWB | Tableau Workbook (Tableau Software, Inc.) |
| .TWBX | Tableau Packaged Workbook (Tableau Software) |
| .TWC | Tripwire Configuration File |
| .TWC | TTWin 3 Configuration File (Turbosoft Pty. Ltd.) |
| .TWD | MindMapper Brainstorm and Visual Map (SimTech Systems, Inc.) |
| .TWDS | MindMapper Packaged MindMapper Brainstorm and Visual Map (SimTech Systems, Inc.) |
| .TWE | ThinkWave Educator Data File |
| .TWELVE | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TWF | TabWorks File |
| .TWF | Georeferenced Information File |
| .TWF | Casio Organizer File (Casio Computer Co., Ltd.) |
| .TWG | ThatWaltGuy Web Server File |
| .TWILIGHTZONE-REMIX | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TWK | BC31 BG12 Tweak File |
| .TWL | GPS Track |
| .TWLT | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TWM | TeamWORKS Module Launcher (TeamWORKS Solutions Inc.) |
| .TWN | Op9630 Settings File |
| .TWN | Scanner Settings File |
| .TWO | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TWOLAMP | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TWP | Teamwork Planner Project (Devista) |
| .TWP | Complete Works Wordprocessing Document (Toplevel Computing) |
| .TWP | Fine Words Wordprocessing Document (Toplevel Computing) |
| .TWP | Thai Editor Thai Document (Doug Anderson) |
| .TWP | Tripwire Policy File |
| .TWR | Tripwire Report File |
| .TWS | TextPad Workspace File |
| .TWS | Tripwire Schedule File |
| .TWW | Tagwrite Template |
| .TX | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TX | Photoline5 Help File |
| .TX | Chaos Desktop Extra Text File (Chaos systems AB) |
| .TX$ | Driver Modem Bitware Disk4 File |
| .TX$ | Poppad File |
| .TX2 | Typequick File |
| .TX2 | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TX8 | DOS Text File |
| .TX? | LoseThos Text File (Terry A. Davis) |
| .TXA | Clarion for Windows Application (.APP) Exported to Text Format (SoftVelocity) |
| .TXB | Fifa 2001 Environment Data |
| .TXB | Descent/D2 Encoded Briefing File |
| .TXC | txtCompiler Script |
| .TXC | EverQuest Cached Compressed Texture |
| .TXC | Urban Chaos Game File |
| .TXD | Clarion for Windows Application Code in Text Format (SoftVelocity) |
| .TXD | Grand Theft Auto III Texture Dictionary (Rockstar Games) |
| .TXD | Renderware Texture Dictionary (Criterion Software) |
| .TXD | Letters Direct |
| .TXE | Enriched Text File |
| .TXF | Tax Exchange Format (Intuit) |
| .TXF | Compressed File |
| .TXF | STAR Transit Translation Text (STAR Medien AG) |
| .TXG | SecureGroup File |
| .TXG | Georeference Subobject File |
| .TXG | Questionnaire Specification Language File |
| .TXI | TeX Support File |
| .TXK | Kardplay 1.62 File |
| .TXK | KaraDOS Karaoke File Text |
| .TXL | Genesis3D Texture File |
| .TXM | TextMap Ver. 1 Case Format File (LexisNexis) |
| .TXM | Pension Reporter Data File (DATAIR Employee Benefit Systems, Inc.) |
| .TXM | Steuer2001 Daten File |
| .TXM | CFPWinman Document File (CFP Software Limited) |
| .TXM | Tagsoft Data File (CMSI Technologies) |
| .TXMAP | TextMap Ver. 3 Case Format File (LexisNexis) |
| .TXN | Mfhdf Doc File |
| .TXP | PrivyPad (SlavaSoft Inc.) |
| .TXP | Tweaking Toolbox XP Import/Export Settings (WinShareSoft) |
| .TXR | Corel Graphics Ver 10 Custom File (Corel) |
| .TXS | Beast 2.02 Trojan File |
| .TXS | Letters Direct |
| .TXT | EasyPlot Saved Data (Spiral Software) |
| .TXT | Wireshark Traffic Log (Gerald Combs) |
| .TXT | DisplayWrite Document |
| .TXT | Text File |
| .TXTDT | DVD TEXT Data File |
| .TXTENX | egis Encrypted TXT File (HiTRUST Inc.) |
| .TXV | RapidReader TextVision File (SoftOlogy IdeaWorks, LLC) |
| .TXW | Yamaha TX16W Wave Files (Yamaha Corporation of America) |
| .TXX | DataPerfect Text Storage |
| .TXZ | Morfwarp AU File |
| .TX_ | Compressed TXT File |
| .TX_ | Webcd Fread File |
| .TY2 | Gualtieri Theme Maker |
| .TYM | PageMaker Time Stamp (Adobe Systems Incorporated) |
| .TYP | Thumbs32 File |
| .TYPES | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TZ | Ingres Time Zone File (Computer Associates International, Inc.) |
| .TZ | Tzip Compressed Archive |
| .TZ | Compressed File |
| .TZB | Compressed File |
| .TZB | TAR.Z.btoa Compressed File |
| .TZD | Communicator Locale File (Netscape) |
| .TZIP | Tzip Compressed Archive |
| .TZM | Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| .TZT | CP/M Information File |
| .TZX | Tanzzle Graphic Object (Kromasoft) |
| .TZX | RamSoft's MakeTZX ZX Spectrum Tape Image |
| .T_1 | Polytext Ma'archot Meida Co. S"TaM |