| File extension |
File description |
Developer/Producer |
| .t |
Turing Source Code File |
Holt Software |
| .t$m |
AVG Internet Security Temporary File |
Grisoft |
| .t01 |
TaxCut 2001 File |
N/A |
| .t02 |
TaxCut 2002 File |
N/A |
| .t03 |
TaxCut 2003 File |
N/A |
| .t04 |
TaxCut 2004 File |
N/A |
| .t05 |
TaxCut 2005 Tax Return |
H&R Block |
| .t06 |
TaxCut 2006 Tax Return |
H&R Block |
| .t07 |
TaxCut 2007 Tax Return |
H&R Block |
| .t08 |
TaxCut 2008 Tax Return |
H&R Block |
| .t09 |
At Home 2009 Tax Return |
H&R Block |
| .t10 |
At Home 2010 Tax Return |
H&R Block |
| .t11 |
At Home 2011 Tax Return |
H&R Block |
| .t12 |
At Home 2012 Tax Return |
H&R Block |
| .t2 |
Textease 2000 File |
Lightroom Education |
| .t2b |
CyBook Thumbnail Image |
Bookeen |
| .t2k |
Teach2000 Document |
Basement.nl |
| .t2ks |
Teach2000 Exam Results File |
Basement.nl |
| .t2kt |
Teach2000 Exam File |
Basement.nl |
| .t3001 |
TARGET 3001! Circuit Design Project File |
TARGET 3001! |
| .t3d |
Unreal Engine 3D Object File |
Epic Games |
| .t3x |
TYPO3 Compressed Extension |
N/A |
| .t64 |
Commodore 64 Tape Image File |
N/A |
| .taac |
Sun TAAC Image File |
Sun Microsystems |
| .tab |
MapInfo TAB File |
Pitney Bowes Software |
| .tac |
ActiCalc Data File |
ActiCalc |
| .taf |
ADRIFT Text Adventure File |
Campbell Wild |
| .tag |
DataFlex Query Tag |
N/A |
| .tak |
Music Maker Take File |
MAGIX |
| .tao |
Track at Once CD/DVD Image |
N/A |
| .tap |
Commodore 64 Cassette Tape Image |
N/A |
| .tar |
Consolidated Unix File Archive |
Jean-loup Gailly |
| .tar.gz |
Compressed Tarball File |
The GNU Project |
| .tar.gz2 |
Misnamed BZ2 Tarball |
N/A |
| .tar.lzma |
LZMA Compressed Tarball |
N/A |
| .tar.xz |
XZ Compressed Tar Archive |
Tukaani |
| .tardist |
TAR Distribution Archive |
SGI |
| .targets |
MSBuild Targets File |
Microsoft |
| .tax |
TurboTax Tax Return |
Intuit |
| .tax08 |
TurboTax 2008 Tax Return File |
Intuit |
| .tax09 |
TurboTax 2009 Tax Return File |
Intuit |
| .tax10 |
TurboTax 2010 Tax Return File |
Intuit |
| .tax11 |
TurboTax 2011 Tax Return File |
Intuit |
| .tax12 |
TurboTax 2012 Tax Return File |
Intuit |
| .tax2008 |
TurboTax 2008 Tax Return |
Intuit |
| .tax2009 |
TurboTax 2009 Tax Return |
Intuit |
| .tax2010 |
TurboTax 2010 Tax Return |
Intuit |
| .tax2011 |
TurboTax 2011 Tax Return |
Intuit |
| .tax2012 |
TurboTax 2012 Tax Return |
Intuit |
| .taz |
Tar Zipped File |
N/A |
| .tb |
Tabbery Tab File |
Tabbery |
| .tb0 |
Adobe Photoshop Thumbnail Cache File |
Adobe Systems |
| .tbk |
ToolBook File |
SumTotal Systems |
| .tbl |
StarCraft Information Table |
Blizzard Entertainment |
| .tbm |
Toribash Mod File |
Nabi Studios |
| .tbn |
XBMC Thumbnail Image |
XBMC |
| .tbp |
Tekla BIMsight Project |
Tekla |
| .tbs |
TuneUp Utilities Boot Screen |
TuneUp Corporation |
| .tbz |
Bzip Compressed Tar Archive |
N/A |
| .tbz2 |
Tar BZip 2 Compressed File |
N/A |
| .tc |
TrueCrypt Volume |
TrueCrypt |
| .tc2 |
TurboCAD 2D Mac Drawing |
IMSI |
| .tc3 |
TurboCAD 2D/3D Mac Drawing |
IMSI |
| .tcc |
TimeCalc Classic Data File |
ProSystems |
| .tcd |
Technobox CAD Drawing |
Technobox |
| .tcl |
Tcl Script |
N/A |
| .tcm |
TurboCAD Mac Drawing |
IMSI |
| .tcp |
Tally Compiled Program File |
Tally Solutions |
| .tcr |
Psion Series 3 eBook File |
Psion Teklogix |
| .tct |
TurboCAD Drawing Template |
IMSI/Design |
| .tcw |
TurboCAD Drawing File |
IMSI/Design |
| .tcx |
Training Center Database File |
Garmin |
| .tcz |
Tiny Core File |
Linux |
| .td |
Thunder Incomplete Download File |
Thunder Network Technologies |
| .td0 |
Teledisk Archive |
N/A |
| .td4 |
RollerCoaster Tycoon Track File |
Chris Sawyer Productions |
| .td6 |
RollerCoaster Tycoon Track Design File |
Chris Sawyer Productions |
| .tda |
Palm To-Do File |
Palm |
| .tda3mt |
DivX Author Template File |
DivX |
| .tdb |
eBay Turbo Lister Backup File |
eBay |
| .tddd |
3D Data Description File |
Impulse |
| .tde |
Tableau Data Extract File |
Tableau Software |
| .tdf |
Guide Text Definition File |
Project Pluto |
| .tdl |
MathType Translator Definition Language |
N/A |
| .tdm |
LabVIEW Binary Measurement File |
National Instruments |
| .tds |
Turbo Debugger Symbols File |
Borland |
| .tdt |
THOR Data Tree File |
Daylight Chemical Information Systems |
| .tdx |
D-TEG CCTV Video Information File |
D-TEG |
| .tdz |
Drobo Firmware File |
Drobo |
| .te |
Textease CT Database File |
Lightbox Education |
| .te3 |
WinTrack Object File |
WinTrack |
| .teacher |
SMART Response Teacher Database File |
SMART Technologies |
| .tec |
TECkit Compiled Mapping File |
SIL International |
| .ted |
Alamo Map File |
Petroglyph Games |
| .tef |
TablEdit Tablature |
tabledit.com |
| .temp |
Temporary (Temp) File |
N/A |
| .template |
Apple Pages Template |
Apple |
| .terminal |
Terminal Settings File |
Apple |
| .testrunconfig |
Visual Studio Test Run Configuration File |
Microsoft |
| .testsettings |
Visual Studio Test Settings File |
Microsoft |
| .tet |
Textease CT Template |
Lightbox Education |
| .tex |
LaTeX Source Document |
N/A |
| .tex0 |
Wii Texture File |
N/A |
| .text |
Plain Text File |
N/A |
| .textclipping |
Mac OS X Text Clipping File |
Apple |
| .textfactory |
BBEdit Text Factory |
Bare Bones Software |
| .tfa |
TreeSoft CashFlow Analysis Data File |
treeSoft |
| .tfc |
Unreal Engine 3 Texture File Cache |
Epic Games |
| .tfd |
Tape Format Requirements Document |
N/A |
| .tfil |
Blizzard Software Update File |
Blizzard Entertainment |
| .tfm |
TeX Font Metric File |
N/A |
| .tfmx |
Final Music System Tracker Module |
N/A |
| .tfr |
TIE Fighter Pilot File |
LucasArts |
| .tfrd |
Tape Image Format Requirements Document |
National Geospatial-Intelligence Agency |
| .tfw |
World File for TIFF |
ESRI |
| .tg |
TuxGuitar Document |
TuxGuitar |
| .tg4 |
Tiled Group 4 Raster Image File |
Bentley Systems |
| .tga |
Targa Graphic |
Avid Technology |
| .tgf |
Trivial Graph Format File |
N/A |
| .tgz |
Gzipped Tar File |
N/A |
| .th |
Therion Data File |
Therion |
| .tha |
Windows Thai Noise-Words List File |
Microsoft |
| .the |
Microsoft Plus! Theme File |
Microsoft |
| .theme |
Microsoft Plus! Desktop Theme |
Microsoft |
| .themepack |
Windows 7 Theme Pack |
Microsoft |
| .thm |
Thumbnail Image File |
N/A |
| .thmx |
Office 2007 Theme File |
Microsoft |
| .thp |
Wii/GameCube Video File |
N/A |
| .thumb |
JAlbum Thumbnail File |
JAlbum |
| .thx |
Amiga THX Tracker Music File |
N/A |
| .tib |
Acronis True Image File |
Acronis |
| .tie |
CrossTie Installer File |
Codeweavers |
| .tif |
Tagged Image File |
N/A |
| .tiff |
Tagged Image File Format |
Adobe Systems |
| .tig |
TI Connect Backup File |
Texas Instruments |
| .tiger |
Tomb Raider Game Data Archive |
Crystal Dynamics |
| .tim |
The Incredible Machine Level |
Sierra |
| .time |
LIGHT File |
Light of Creativity |
| .tip |
TuneUp Utilities Icon Package |
TuneUp Corporation |
| .tiprogram |
TI-Basic Program File |
Texas Instruments |
| .tis |
True Image Script |
Acronis |
| .tivo |
TiVo Video File |
TiVo |
| .tix |
DivX Video Download Activation File |
DivX |
| .tja |
Taikojiro Song Map File |
Taikojiro |
| .tjc |
Taikojiro Song Map Sequence File |
Taikojiro |
| .tjp |
TaskJuggler Project File |
TaskJuggler |
| .tk |
Tk Script |
N/A |
| .tk3 |
TK3 Multimedia eBook |
Night Kitchen |
| .tkfl |
TKLinks Saver Favorite Links File |
N/A |
| .tko |
Win32/Oficla Trojan File |
N/A |
| .tkr |
Tinker Custom Level File |
Microsoft |
| .tl5 |
Timeliner 5 File |
Tom Snyder Productions |
| .tla |
TuneUp Utilities Startup Logo |
TuneUp Corporation |
| .tlb |
OLE Type Library |
Microsoft |
| .tlc |
The Logo Creator File |
Laughingbird Software |
| .tld |
Tag Library Descriptor File |
N/A |
| .tlg |
QuickBooks Transaction Log File |
Intuit |
| .tlh |
Typelib Generated C/C++ Header File |
Microsoft |
| .tli |
Typelib Generated C/C++ Inline File |
N/A |
| .tlk |
BioWare Aurora Engine Talk Table File |
BioWare |
| .tll |
LG TV Link-Loader File |
LG Electronics |
| .tlo |
SPSS TableLooks File |
IBM |
| .tlp |
Tulip Software Graph Format |
David Auber and Patrick Mary |
| .tls |
TuneUp Utilities Logon Screen |
TuneUp Corporation |
| .tlx |
Standard Dictionary File |
N/A |
| .tlz |
Tar LZMA Compressed File |
Lzip |
| .tlzma |
LZMA Compressed Tar Archive |
N/A |
| .tm |
TeXmacs Document |
GNU |
| .tm2 |
PlayStation 2 Graphic |
N/A |
| .tm8 |
Theta Music Composer 1.x Audio File |
Theta Music Composer |
| .tmb |
Timbuktu Pro Connection Document |
Netopia |
| .tmbundle |
TextMate Bundle File |
MacroMates |
| .tmc |
Theta Music Composer 1.x Audio File |
Theta Music Composer |
| .tmd |
TextMaker Document |
SoftMaker Software |
| .tme |
Bryce Time File |
DAZ Productions |
| .tmlanguage |
TextMate Language Grammar File |
MacroMates |
| .tmo |
3DCG Animation and Pose File |
3D Custom Girl |
| .tmp |
Temporary File |
N/A |
| .tmpl |
Xfire User Interface Template |
Xfire |
| .tmproj |
TextMate Project File |
MacroMates |
| .tmproject |
TextMate Project |
MacroMates |
| .tmr |
Apimac Timer Document |
Apimac Intuitive Software |
| .tms |
Telemate Script |
Telemate |
| .tmtheme |
TextMate Theme File |
MacroMates |
| .tmv |
TextMaker Template |
SoftMaker Software |
| .tmw |
Translation Memory Data File |
SDL |
| .tmx |
Translation Memory Exchange File |
Localization Industry Standards Association |
| .tmzip |
Theme Manager Zip File |
Theme Manager |
| .tn |
LG Phone Image |
LG |
| .tn1 |
Tiny Low Resolution Image |
Atari |
| .tn2 |
Tiny Medium Resolution Image |
Atari |
| .tn3 |
Tiny High Resolution Image |
Atari |
| .tne |
Manga Studio Tone File |
Smith Micro |
| .tnef |
Transport Neutral Encapsulation Format |
Microsoft |
| .tns |
TI-Nspire Document |
Texas Instruments |
| .tnsp |
TI-Nspire PublishView Document |
Texas Instruments |
| .tny |
Atari Tiny Image |
Atari |
| .toast |
Toast Disc Image |
Roxio |
| .toc |
Eudora Table of Contents |
QUALCOMM |
| .tod |
JVC Everio Video Capture File |
JVC |
| .tol |
AOL Tool File |
America Online |
| .top |
TopSolid Design Document |
Missler Software |
| .topc |
TopicCrunch Project File |
TopicCrunch |
| .topprj |
TopSolid Project File |
Missler Software |
| .tor |
Star Wars: The Old Republic Asset File |
LucasArts |
| .torrent |
BitTorrent File |
BitTorrent |
| .totalsbackup |
Totals Database Backup File |
Kedisoft |
| .totalsdb |
Totals Database File |
Kedisoft |
| .totalslayout |
Totals Invoice Layout File |
Kedisoft |
| .totalssyncdb |
Totals Synchronized Database File |
Kedisoft |
| .tp |
Beyond TV Transport Stream File |
SnapStream Media |
| .tp0 |
Mascom PVR Video File |
Squared 5 |
| .tp3 |
Harvard Graphics DOS Template File |
Harvard Graphics |
| .tp4 |
RollerCoaster Tycoon Track Picture File |
Chris Sawyer Productions |
| .tpark |
ThemePark Project File |
GeekSpiff |
| .tpb |
GROMACS Binary Input File |
Gromacs |
| .tpc |
Topic Connection Placeholder |
G&A M.C. |
| .tpd |
Cyberlink TOD Video File |
CyberLink |
| .tpf |
Transit NXT Pack Translation File |
STAR Group |
| .tpi |
EDIUS Plugin File |
Thomson |
| .tpl |
Document Template |
N/A |
| .tpm |
Trusted Platform Module Password File |
Microsoft |
| .tpr |
TMPGEnc Project File |
PEGASYS |
| .tps |
Clarion TopSpeed Data File |
Clarion |
| .tpu |
Turbo Pascal Unit |
Borland |
| .tpx |
DeLorme Topo Project File |
DeLorme |
| .tpz |
Kindle Topaz eBook File |
Amazon |
| .tr |
TomeRaider 2 eBook File |
TomeRaider |
| .tr3 |
TomeRaider eBook File |
TomeRaider |
| .tra |
WinTrack Railroad Track File |
WinTrack |
| .trace |
VMware ThinApp Trace Log File |
VMware |
| .trak |
Traktor Content Pack File |
Native Instruments |
| .tray |
Corel CONNECT Tray File |
Corel |
| .trc |
Oracle Trace File |
Oracle |
| .trd |
TrID Definitions Package |
TrID |
| .tri |
FaceGen Polygonal Model File |
Singular Inversions |
| .trif |
Tiled Raster Interchange Format |
Tiling Task Group |
| .trk |
CompeGPS Land Track File |
CompeGPS TEAM |
| .trm |
FTR Media File |
ForTheRecord |
| .trn |
SQL Server Transaction Log Backup File |
Microsoft |
| .trp |
HD Video Transport Stream |
N/A |
| .trs |
Rosetta Stone Language Data File |
Rosetta Stone |
| .truck |
Rigs of Rods Truck Definition File |
N/A |
| .trx |
Visual Studio Test Results File |
Microsoft |
| .trx_dll |
Windows Startup File |
Microsoft |
| .ts |
Video Transport Stream File |
N/A |
| .ts1 |
VirtualBus Texture Description File |
VirtualBus |
| .tsc |
TINA Design File |
DesignSoft |
| .tsf |
Strater Template File |
Golden Software |
| .tsi |
Traktor Settings File |
Native Instruments |
| .tsk |
Pocket PC Skin |
N/A |
| .tsm |
TwinCAT System Manager Configuration File |
Beckhoff Automation |
| .tsp |
Digital TV DVR Recording |
N/A |
| .tst |
TestPoint Test File |
Measurement Computing |
| .tstream |
SwarmPlayer Streaming Torrent |
p2p-next consortium |
| .tsv |
Tab Separated Values File |
N/A |
| .tsz |
Trillian Skin File |
Cerulean Studios |
| .tt |
Visual Studio Text Template |
Microsoft |
| .tt10 |
TurboTax Canada 2010 Tax Return |
Intuit Canada |
| .tt11 |
TurboTax Canada 2011 Tax Return |
Intuit |
| .tt12 |
TurboTax Canada 2012 Tax Return |
Intuit |
| .tt2012state |
TurboTax 2012 State Tax Form |
Intuit |
| .tta |
True Audio File |
True Audio Software |
| .ttarch |
Telltale Games Archive |
Telltale Games |
| .ttbk |
Canadian TurboTax 2010 Backup File |
Intuit Canada |
| .ttc |
TrueType Font Collection |
N/A |
| .tte |
Private Character Editor File |
Microsoft |
| .ttf |
TrueType Font |
Apple |
| .ttk |
Catalyst Translation Toolkit |
Alchemy Software Development |
| .ttkgp |
TatukGIS Project File |
TatukGIS |
| .ttm |
Tower Toppler Mission File |
Tower Toppler |
| .tts |
ToolBook Translation System File |
SumTotal Systems |
| .ttx |
Trados TagEditor File |
SDL |
| .ttxt |
MPEG-4 Timed Text Subtitles File |
ISO/IEC |
| .tu |
Turing Source File |
Holt Software |
| .tub |
Paint Shop Pro Picture Tube |
Corel |
| .tun |
LEGO Racers Audio File |
High Voltage Software |
| .tur |
Turing Program Source File |
Holt Software |
| .tut |
Children of the Nile Tutorial File |
Tilted Mill Entertainment |
| .tvj |
TrueView Job Ticket |
basICColor |
| .tvl |
TurboTax File |
N/A |
| .tvpi |
TitanTV Television Listing File |
Decisionmark |
| .tvs |
TeamViewer Video Session File |
TeamViewer |
| .tvvi |
TitanTV Television Listing File |
Decisionmark |
| .twb |
Tableau Workbook File |
Tableau Software |
| .twbx |
Tableau Packaged Workbook |
Tableau Software |
| .twc |
TTWin Configuration File |
Turbosoft |
| .twm |
theWord Module |
theWord Bible Software |
| .twt |
Carmageddon 2 Data File |
N/A |
| .twz |
theWord Compressed Archive Module |
theWord Bible Software |
| .twzip |
theWord Compressed Archive Module |
theWord Bible Software |
| .txa |
Midas ViewPoint Text Array List |
Sentel Advance |
| .txd |
Game Texture Dictionary |
Renderware |
| .txf |
Tax Exchange Format |
N/A |
| .txn |
MySpaceIM Conversation Log File |
MySpace.com |
| .txt |
Plain Text File |
N/A |
| .txtrpt |
CommScope Teletilt Control System Report |
CommScope |
| .txw |
Yamaha TX16W Audio File |
N/A |
| .txz |
XZ Compressed Tar Archive |
Tukaani |
| .tx_ |
Compressed Text File |
N/A |
| .tyimport |
Typinator Set Import File |
Ergonis Software |
| .typeit4me |
TypeIt4Me Clippings File |
Ettore Software |
| .tyset |
Typinator Set File |
Ergonis Software |
| .tz |
Zipped Tar Archive |
N/A |
| .tzx |
ZX Spectrum Tape Image File |
N/A |
