Data Files

File Extension	File Type	Popularity
.T01	TaxCut 2001 File
.T02	TaxCut 2002 File
.T03	TaxCut 2003 File
.T04	TaxCut 2004 File
.T05	TaxCut 2005 Tax Return
.T06	TaxCut 2006 Tax Return
.T07	TaxCut 2007 Tax Return
.T08	TaxCut 2008 Tax Return
.T09	At Home 2009 Tax Return
.T10	At Home 2010 Tax Return
.T11	At Home 2011 Tax Return
.T12	At Home 2012 Tax Return
.T13	H&R Block 2013 Tax Return
.T14	H&R Block 2014 Tax Return
.T15	H&R Block 2015 Tax Return
.T16	H&R Block 2016 Tax Return
.T17	H&R Block 2017 Tax Return
.T18	H&R Block 2018 Tax Return
.T2	Textease 2000 File
.T2K	Teach2000 Document
.T2KS	Teach2000 Exam Results File
.T2KT	Teach2000 Exam File
.TA4	TaxAct 2014 Tax Return File
.TA5	TaxAct 2015 Tax Return File
.TA6	TaxAct 2016 Tax Return File
.TA7	TaxAct 2017 Tax Return File
.TA8	TaxAct 2018 Tax Return File
.TA9	TaxAct 2019 Tax Return File
.TABLECONTENT	SMART Table Activity Pack File
.TAC	ActiCalc Data File
.TAG	DataFlex Data File
.TAR	Consolidated Unix File Archive
.TARDIST	TAR Distribution Archive
.TASPROJ	BizHawk TAStudio Project
.TAX	TurboTax Tax Return
.TAX08	TurboTax 2008 Tax Return File
.TAX09	TurboTax 2009 Tax Return File
.TAX10	TurboTax 2010 Tax Return File
.TAX11	TurboTax 2011 Tax Return File
.TAX12	TurboTax 2012 Tax Return File
.TAX13	TurboTax 2013 Tax Return File
.TAX15	TurboTax 2015 Tax Return File
.TAX16	TurboTax 2016 Tax Return File
.TAX17	TurboTax 2017 Tax Return File
.TAX2008	TurboTax 2008 Tax Return
.TAX2009	TurboTax 2009 Tax Return
.TAX2010	TurboTax 2010 Tax Return
.TAX2011	TurboTax 2011 Tax Return
.TAX2012	TurboTax 2012 Tax Return
.TAX2013	TurboTax 2013 Tax Return
.TAX2014	TurboTax 2014 Tax Return
.TAX2015	TurboTax 2015 Tax Return
.TAX2016	TurboTax 2016 Tax Return
.TAX2017	TurboTax 2017 Tax Return
.TAX2018	TurboTax 2018 Tax Return
.TAX2019	TurboTax 2019 Tax Return
.TB	Tabbery Tab File
.TBD	Visual Studio Toolbox Data File
.TBK	ToolBook File
.TBL	StarCraft Information Table
.TBX	TermBase eXchange File
.TBX	ArcGIS for Desktop Toolbox File
.TC	Tellico Collection File
.TCC	TimeCalc Classic Data File
.TCLOGS	TestComplete Log Configuration File
.TCNET	TestComplete Configuration Reference File
.TCX	Training Center XML File
.TDA	Palm To-Do File
.TDA	Java Application Thread Dump
.TDB	Android Thumbnail Cache
.TDE	Tableau Data Extract File
.TDL	Tab Delineated Format File
.TDL	ToDoList Tasklist File
.TDM	LabVIEW Binary Measurement File
.TDMS	Technical Data Management Streaming File
.TDT	FirstBreak Concrete Test File
.TDT	THOR Data Tree File
.TE3	WinTrack Object File
.TED	TouchMagix Editable Document Template
.TEF	TablEdit Tablature
.TER	Terragen Terrain File
.TERRN	Rigs of Rods Terrain File
.TERRN2	Rigs of Rods Terrain 2 File
.TET	Textease CT Template
.TEXTEXPANDERSETTINGS	TextExpander Settings File
.TFA	TreeSoft CashFlow Analysis Data File
.TFD	Tape Format Requirements Document
.TGC	Terragen Node Clip File
.TGD	Terragen Project File
.TGF	Trivial Graph Format File
.THUMBDATA4-1967290299	Thumbnail Index File
.TIE	CrossTie Installer File
.TIMELINE	Timeline Data File
.TJP	TaskJuggler Project File
.TKFL	TKLinks Saver Favorite Links File
.TL5	Timeliner 5 File
.TLP	Tulip Software Graph Format File
.TLX	Standard Dictionary File
.TMR	Apimac Timer Document
.TMW	Translation Memory Data File
.TMX	Translation Memory Exchange File
.TMZIP	Theme Manager Zip File
.TOP	Gromacs Topology File
.TOPC	TopicCrunch Project File
.TORCHDOWNLOAD	Torch Partially Downloaded File
.TOTALSBACKUP	Totals Database Backup File
.TOTALSDB	Totals Database File
.TOTALSSYNCDB	Totals Synchronized Database File
.TPB	GROMACS Binary Input File
.TPD	TreePad 7 Database File
.TPF	Transit NXT Pack Translation File
.TPS	Multi Channel Measurement File
.TQS	Trivia Quiz Shell Program File
.TRA	WinTrack Railroad Track File
.TRD	TrID Definitions Package
.TRF	TorrentRover File
.TRF	Smaart Transfer Function File
.TRK	Finale Track Mapping File
.TRK	CompeGPS Land Track File
.TRK	Garmin Track File
.TRM	FTR Media File
.TRS	WinTrack Railroad Track Text File
.TRS	Rosetta Stone Language Data File
.TRX	Firmware Image File
.TRX	WebAuthorize Batch File
.TS	Qt Translation Source File
.TSK	Top Silkscreen File
.TSL	Tracker Status Log
.TSR	Tracker Status Report
.TST	TestPoint Test File
.TSV	Tab Separated Values File
.TT10	TurboTax Canada 2010 Tax Return
.TT11	TurboTax Canada 2011 Tax Return
.TT12	TurboTax Canada 2012 Tax Return
.TT13	TurboTax Canada 2013 Tax Return
.TT14	TurboTax Canada 2014 Tax Return
.TT15	TurboTax Canada 2015 Tax Return
.TT16	TurboTax Canada 2016 Tax Return
.TT17	TurboTax Canada 2017 Tax Return
.TT18	TurboTax Canada 2018 Tax Return
.TT2012STATE	TurboTax 2012 State Tax Form
.TT2013STATE	TurboTax 2013 State Tax Form
.TT2014STATE	TurboTax 2014 State Tax Form
.TT2015STATE	TurboTax 2015 State Tax Form
.TT2016STATE	TurboTax 2016 State Tax Form
.TT2017STATE	TurboTax 2017 State Tax Form
.TTD	Tinytag Explorer Data File
.TTK	Catalyst Translation Toolkit
.TTMD	Trail Tracker Trail Map
.TTSKEY	Tech Tool Store License File
.TVC	TeamViewer Configuration File
.TVDOWNLOAD	TeamViewer Download File
.TWB	Tableau Workbook File
.TWBX	Tableau Packaged Workbook
.TWH	Task Wheel Project File
.TWM	theWord Module
.TWZIP	theWord Compressed Archive Module
.TXA	Midas ViewPoint Text Array List
.TXD	Game Texture Dictionary
.TXF	Transit XV Pack Translation File
.TXF	Tax Exchange Format
.TXN	MySpaceIM Conversation Log File
.TXTRPT	CommScope Teletilt Control System Report
.TYIMPORT	Typinator Set Import File
.TYSET	Typinator Set File
.U10	UFile 2010 Tax Return
.U11	UFile 2011 Tax Return
.U12	UFile 2012 Tax Return
.UBJ	Universal Binary JSON File
.UBOX	Universe Sandbox Data File
.UCCAPILOG	Microsoft UCC API Log File
.UD	OmniPage User Dictionary
.UDC	Adobe InDesign User Dictionary
.UDEB	Debian Package File
.UDS	Sierra Generations File
.UDS	Uniform Data System File
.ULF	Universal List File
.ULP	EAGLE User Language Program
.ULZ	USBlyzer Data Capture File
.UMF	MediaHolder Universal Media Format File
.UNITYPACKAGE	Unity Package File
.UOP	Uniform Office Presentation
.UPDATE	ISAPI Update File
.UPOI	iGO Points of Interest File
.UPR	Fractal Parameters File
.UPR	FileMaker User Dictionary
.USEQ	USeq Genome Data File
.USR	SmartMusic Custom File
.USTAR	Uniform Standard Tape Archive Format File
.UVF	Uncertain Value Format
.UVW	UVW Coordinates File
.UWL	User Word List File
.UWRF	Universal Web Radio File
.VAL	Valodas Dictionary File
.VAL	Values List
.VAULT	Fontcase Vault File
.VBPF1	Virtual Business - Personal Finance Data File
.VBW	Visual Basic Workspace File
.VCD	Value Change Dump File
.VCD	Valve Choreography Data File
.VCE	Visual CertExam Exam File
.VCF	vCard File
.VCP	Casio ClassPad Data File
.VCRD	Windows Vault Credentials File
.VCS	vCalendar Event File
.VCT	VISE Installer Project
.VDB	OpenVDB Volume Database File
.VDF	AntiVir Virus Definitions File
.VDX	Visio Drawing XML File
.VEC	Orbiter Vector Map File
.VFF	Wii Virtual Fat Filesystem File
.VFS	VentaFax Schedule File
.VI	LabVIEW Virtual Instrument File
.VIBE	VibePlayer Haptic File
.VIP	Stitch Pattern File
.VLE	Virtual Labs Electricity Circuit File
.VLG	VentaFax Logbook File
.VMSD	VMware Snapshot Metadata File
.VMSN	VMware Snapshot State File
.VMSS	VMware Suspended State File
.VMT	Valve Material File
.VOI	VOI Group File
.VOK	PocketVok Vocabulary File
.VOXB	Voxler Network File
.VP	Justinmind Prototype File
.VPOL	Windows Vault Policy File
.VPP	VisionPro Job File
.VPP	Visual Paradigm Project File
.VPX	Avast Virus Update File
.VRD	Visio Report Definition File
.VS	GreekToMe Verse List File
.VSCH	Windows Vault Schema File
.VSCONTENT	Visual Studio Content File
.VSSM	Visio Macro-Enabled Stencil File
.VSSX	Visio Stencil File
.VSV	Virtual Machine Saved State File
.VSX	Visio Stencil XML File
.VTX	Visio Template XML File
.VUD	Virtual Machine Undo Drive File
.VVF	Voc Vocabulary File
.VXML	VoiceXML File
.VYM	VYM Mind Map File
.VZM	Verizon Message File
.WAB	Windows Address Book
.WAC	Inkling Sketch XML File
.WALLET	MultiBit Wallet File
.WALLET	MultiDoge Wallet File
.WB2	Corel Quattro Pro File
.WB3	Corel Quattro Pro 7 and 8 File
.WCAT	WinCatalog Collection File
.WCD	Works Calendar File
.WCF	WebEx Saved Chat Session
.WCP_SETTINGS	Alpha Five Settings File
.WD3	Offline Explorer Data File
.WDF	WinGenea Genealogy File
.WDF	Workshare Compare DeltaFile
.WDMON	Wireless Diagnostics Monitor File
.WDQ	Offline Explorer Queue File
.WEA	Ecotect Weather File
.WEBAPP	Firefox Web App Manifest File
.WEBPUBLISHHISTORY	Alpha Five Web Publish History File
.WFM	Tektronix Waveform Data File
.WFM	dBASE Form
.WGT	IMPS Data File
.WGT	XNBC Synaptic Weights File
.WHF	Wing Helper File
.WID	SAP BusinessObjects Web Intelligence File
.WINDOWSLIVECONTACT	Windows Live Contacts File
.WJR	ReGet Deluxe Data File
.WK1	Lotus Worksheet
.WK3	Lotus 3 Worksheet
.WK4	Lotus 4 Worksheet
.WK5	Lotus 5 Worksheet
.WKE	Lotus 1-2-3 Educational Version Worksheet
.WKI	Lotus 2 Worksheet
.WLX	WinList Analysis Protocol File
.WNK	Wink Presentation
.WORLD	Worlds.com World File
.WPC	Pazzles Cutting File
.WPC	WordPad Converter File
.WPF	WordPerfect Form
.WPK	GuinXell Package File
.WPO	Technopress Waypoint 2D File
.WPO	HOLUX Waypoint File
.WPOST	Windows Live Writer Post File
.WS	1-2-3 Word Search Maker Puzzle File
.WSI	Wise Package Studio Installer Package
.WSM	Wise Package Studio Merge Module
.WTB	Win-Test Binary Log File
.WTML	WorldWide Telescope Data File
.WTR	Encarta File
.WVP	MagicHTML Web Video Player Project
.XAF	Affirm Deposition Transcript
.XAIML	XAIML Chatterbot Database File
.XAPPL	Spoon XML Application Configuration File
.XAS	Pro/ENGINEER Assembly Instance Accelerator File
.XBD	DocuWorks Binder File
.XBK	SMART Notebook File
.XBRL	XBRL Document
.XBT	SMART Notebook Template File
.XCCRASHPOINT	Xcode Crash Point File
.XCPLUGINDATA	Xcode Plug-in Data File
.XCSL	CineStyle Color Correction File
.XDB	Symantec Virus Database File
.XDF	Microsoft Machine Learning Server Data File
.XDNA	DNA Strider Sequence File
.XDP	XML Data Package
.XDS	LcdStudio Design File
.XEF	eManager Form Data
.XEM	PowerDesigner Model definition File
.XER	Primavera P6 Project File
.XFD	XFD File
.XFD	FormFlow 99 Form Data File
.XFDF	Adobe Acrobat XFDF File
.XFLOW	FlowExchange Data File
.XFO	XSL-FO Formatted Form
.XFR	iProcess Process Definition File
.XFT	Adobe Form Designer 5.0 File
.XGML	Graph Modeling Language XML File
.XGMML	XGMML Graph File
.XGP	Xfire Game Patcher File
.XLC	Microsoft Excel Chart
.XLC	Excel Chart
.XLE	Levelogger Software XML Data File
.XLF	XLIFF Document
.XLGC	ExpressK Database File
.XLIFF	XLIFF Localization File
.XLOG	WeChat Log File
.XLT	Excel Template
.XLT	Microsoft Excel Spreadsheet Template (Legacy)
.XLW	Excel Workbook
.XLW	Microsoft Excel Workbook
.XMAP	XMind 2007/2008 Workbook
.XMCD	Mathcad Worksheet File
.XMCT	Mathcad XML Worksheet Template
.XMD	ExamSoft Answer File
.XMI	XML Metadata Interchange File
.XMIND	XMind Workbook File
.XML	XML File
.XMLPER	LeCroy Binary Waveform File
.XMP	XMind Markers Package
.XMPZ	Miradi XML Project File
.XMWX	SofTest Working Exam File
.XMWX	ExamSoft Working File
.XMZX	SofTest Exam File
.XMZX	ExamSoft Exam File
.XPDL	XPDL Module
.XPG	Autoplay Media Studio Exported Page
.XPJ	RoboHelp HTML Project File
.XPJ	Micro Planner X-Pert Project File
.XPLL	Pull-Planner Data File
.XPM	Micro Planner Manager File
.XPR	SyncRO Soft oXygen XML Editor Project
.XPT	SAS Transport File
.XRB	XMind Resource Bundle
.XRDML	XRDML Data File
.XRFF	Extensible Attribute-Relation File Format
.XRP	RationalPlan Project File
.XRY	XRY Data File
.XSC	Visual Studio Dataset Internal Info File
.XSF	InfoPath Form Definition File
.XSLT	XSL Transformation File
.XSS	XML Style Sheet
.XSVF	Xilinx Serial Vector Format File
.XTG	Extensible TreeGraph File
.XTM	CmapTools Exported Topic Map
.XTM	Xtremsplit Data File
.XTP	xTime Project Document
.XTP	XTree Data File
.XUM	Microsoft Excel Unit Operation Model
.XUM	Excel Unit Operation Model File
.XVCT	VISE XML Project File
.XXD	Brixx Planner Calendar
.XYZ	Molecule Specification File
.XYZ	Celestia Sampled Trajectory Data File
.XYZV	Celestia Sampled Trajectory File
.YAM	Yahoo! Auctions Data
.YCHAT	Yahoo! Messenger Chat Log
.YGF	Y Graph Format File
.YKA	Yenka Model File
.YRCBKM	YRC Bookmarks Archive
.YRCDAT	YRC Software Data Script
.YUMTX	YUM Transaction File
.ZAP	ZoneAlarm Pro Data File
.ZDB	Zimbra Database File
.ZDB	EPSQ Database
.ZDC	CD Catalog Expert Database File
.ZDCT	Adobe Language File
.ZIM	OpenZIM Wiki Archive
.ZIX	Quicken Online File
.ZMA	Impedance File
.ZMC	ZoneAlarm Quarantine File
.ZPL	Zoom Player Playlist
.001	Split Archive File
.17T	2017 StudioTax Return File
.1PH	TurboTax File
.3DMDEF	3DMark Definition File
.3DP	3DMark2011 SE Project File
.3DR	3D Rad Project File
.3DR	3DMark Results File
.3DT	3D Topicscape File
.3DW	Studio Store Visualizer 3D Environment File
.3ME	TurboTax Form File
.3PE	TurboTax 2008 Form File
.4DV	4D View Ultrasound File
.4FS	Puppy Linux Save State File
.5VW	5View Packet Capture File
.73C	TI-73 Constant File
.73L	TI-73 Data List File
.8XG	TI-83/84 Plus Group File
.8XK	TI-83 Plus Application Upgrade File
.8XS	TI-83/84 Plus String File
.8XV	TI-83/84 Plus Variable File
._PLAYMUSICID	Google Play Music ID File
.{PB	Corel WordPerfect Document Index File
.~HM	HostMonitor TestList Backup File
.A5L	Authorware 5 Library
.A5W	Authorware 5 Windows File
.A65	Authorware 6.5 File
.AAM	Authorware Map File
.AAO	Agenda At Once File
.AB	DNA Sequence File
.AB1	DNA Electropherogram File
.AB3	PhotoImpact 3 Album File
.ABCD	AudioVisual Book Data File
.ABI	DNA Chromatogram File
.ABKPRJ	Ashampoo Backup Project
.ABP	AVS Barcode Profile
.ABY	AOL Address Book File
.ACA	Agent Character Animation File
.ACC	Graphics Accounts Data File
.ACF	X-Plane Aircraft File
.ACF	Agent Character Data File
.ACG	Agent Preview File
.ACG	Audio Comparer Group File
.ACQ	AcqKnowledge Data Graph File
.ACR	Audio Comparer Results File
.ACZ	AppCraft Project
.ADCP	Adobe Device Central Project File
.ADDISM	Addism Data File
.ADIF	Amateur Data Interchange Format
.ADT	ACT! Document Template
.ADU	Addict User Dictionary File
.ADV	Nortek Acoustic Doppler Velocimeter File
.ADVS	Adobe Device Central Device Set
.ADX	Approach Index File
.AES	ooVoo Log File
.AFE	Avid File Exchange File
.AFF	Spellcheck Dictionary Description File
.AFT	Ancestry.com Family Tree Database
.AGD	AgileGraph Data File
.AGGR	Adobe Captivate Aggregate File
.AIFB	AIF Builder Project File
.ALC	Dynamics AX Label Description File
.ALD	Dynamics AX Application Label Data File
.ALDF	Aldfaer Genealogy File
.ALF	Unity License Request File
.ALF	Alf Interactive Test
.ALI	Dynamics AX Label Index File
.ALI	RoboHelp Alias File
.AMB	All My Books Database File
.AMB	AIMMS Model File
.AMC	Ant Movie Catalog File
.AML	Automation Markup Language File
.AMM	All My Movies Database File
.AMSORM	OnLine Ringman Auction Client File
.AN1	Street Atlas USA Draw File
.AN8	Vector NTI DNA File
.ANME	Anime Studio Document
.ANS	HotDocs Binary Answer File
.ANSYM	Adobe Edge Animate Library File
.ANX	HotDocs Answer File
.APH	Ability Album File
.APLIBRARY	Aperture Library
.ARC	Nintendo Archive File
.ARFF	Attribute-Relation File Format
.ARN	Autoruns Data File
.ART	BERNINA Embroidery File
.AS	AppleSingle File
.ASHPRJ	Ashampoo Burning Studio Project
.ASM	Pro/ENGINEER Assembly File
.ASND	Adobe Sound Document
.ASPK	Android Split Package
.ASR	Adobe Photoshop Scratch File
.AST	ClarisWorks Assistant File
.ATF	Axon Text File
.ATI	Draw Cartoons 2 Character
.ATOMSVC	Atom Service Document
.ATS	Advanced ETL Transformation Script
.AVC	Kaspersky Virus Database
.AVHDX	Automatic Virtual Hard Drive File
.AVJ	AntiVir Job File
.AVL	AntiVir Status Report File
.AVP	AntiVir Profile
.AW	Answer Wizard File
.AWBR	WriteOnline WordBar File
.AWDB	Access Walker Database File
.AWG	Activeworlds Object Group File
.AZZ	AZZ Cardfile Database File
.AZZX	Uncompressed AZZ Cardfile Data File
.B02	BlindWrite CD Data Segment File
.BAFL	BurnAware File List
.BAR	Brew MP Binary Application Resource File
.BASERPROJ	DNA Baser Project File
.BCC	Calendar Creator File
.BCI	Belarc Advisor Report File
.BCL	Illumina Base Call File
.BCM	Business Contact Manager File
.BCM	Adobe Bridge Cache File
.BCT	Adobe Bridge Thumbnail Cache File
.BDC	Babylon Dictionary File
.BDF	Bulk Data Input File
.BDF	Binary Data File
.BDIC	Chrome Dictionary File
.BED	UCSC BED Annotation Track File
.BFX	Bitware Fax Document
.BHO	Behold Organize File
.BIM	Bytessence InstallMaker Document
.BIN	Nintendo Wii Data File
.BIN	Generic Binary File
.BINARY	PC Building Simulator Save File
.BINARYCOOKIES	Safari Cookies File
.BIONIX	BioniX Wallpaper Playlist File
.BJO	TabRite Tablature File
.BLB	Blob Data File
.BLD	Envisioneer Building Project File
.BLG	Windows Binary Performance Log File
.BLG	BibTeX Log File
.BLN	Golden Software Blanking File
.BLOCKPLT	LEGO MINDSTORMS NXT Block Palette File
.BLOGTHIS	Windows Live Writer Data File
.BLUEBUTTON	VA Blue Button Data File
.BM2	Boardmaker Interactive Board File
.BMS	BIOWRAP Multi-Layer Security File
.BNK	Spotify Playlist File
.BNK	ExamView Question Bank File
.BOK	TestGen Testbank File
.BOOK	Budget In Brief Book File
.BOX	E-mail Mailbox
.BPDX	Business Plan Pro Document
.BPHYS	Blender Cache File
.BPJ	Boxsim Simulation Project
.BPL	Bore Plan Log
.BPLX	Bore Plan XML File
.BPM	Trados AutoSuggest Dictionary File
.BRAIN	PersonalBrain Mind Map File
.BRD	EAGLE Circuit Board File
.BRF	Braille Ready Format File
.BRIDGECACHE	Adobe Bridge Cache Export File
.BRL	MicroBraille File
.BRN	BrainStorm Data File
.BRS	RoboHelp Browse Sequence File
.BRW	Calyx Point Borrower File
.BSD	BSDL File
.BSDL	Boundary Scan Description Language File
.BTF	NationsBank Check Images
.BTIF	NationsBank Check Image File
.BTINSTALL	uTorrent Installer File
.BTM	BizTalk Map File
.BUD	Binary Printer Description File
.BUL	I4 Bullseye Data File
.BVP	VodaHost BlueVoda Project File
.C3D	Coordinate 3D File
.C4P	CrossOver Software Installer File
.CAF	Class Action Gradebook File
.CAMM	espresso Mind Map Document
.CAP	Packet Capture File
.CAPT	Capito Data File
.CAPX	Capella CapXML File
.CAR	Car Explorer Data File
.CAV	Comodo Virus Definitions File
.CAWR	Espresso workreport Document
.CBG	ChessBase Game Moves File
.CBG	CyberGauge Data File
.CBMAP	Containment Breach Map File
.CBZ	ChessBase Encrypted Database Archive
.CCA	cc:Mail Archive File
.CCA	Multimedia Fusion File
.CCD	ClickCharts Diagram
.CCH	Corel Chart File
.CCLD	Construction Clouds Data File
.CCP	RIB Import Converter Profile
.CCT	Director Protected Cast Resource
.CDF	Common Data Format
.CDF	NetCDF Format File
.CDF	Affymetrix Chip Definition File
.CDF	Content Definition File
.CDF	Nominal Small Business Accounting Company Data File
.CDI	INTEX Output File
.CDM	Conceptual Data Model File
.CDP	ConceptDraw PROJECT File
.CDP	CD/Spectrum Pro File
.CDPZ	ConceptDraw PROJECT Document
.CDR	Crash Data Retrieval Data File
.CDX	Compound Index File
.CDX	ChemDraw Exchange File
.CDXML	ChemDraw XML File
.CEF	Class Action Gradebook Elementary File
.CEL	Affymetrix Probe Results File
.CEL	Battery 3 Drum Cell File
.CELTX	Celtx Project File
.CFA	ComProbe Analyzer Capture File
.CFB	Compound Binary File
.CFD	NortonLifeLock Optimization File
.CFS	CFS Console File
.CFX	Flow-Cal Data File
.CHG	Quicken Online Data File
.CHK	InterCheck Checksum Database
.CIF	Crystallographic Information File
.CIRC	Logisim Circuit File
.CKT	CircuitMaker File
.CL2	HY-TEK Meet Results File
.CLASSLIST	SMART Notebook Class List File
.CLB	ICQ Contact List
.CLG	Collage Maker Project File
.CLIX	CLIX Command File
.CLK	Corel R.A.V.E Project File
.CLKM	Clicker Matching Set File
.CLKS	Clicker Sentences File
.CLKTK	Clicker Talk Set File
.CLKV	Clicker Communicator Vocabulary Set File
.CLM	MagicJack Call Log File
.CLM	GenePattern CEL Descriptor File
.CLP	CrazyTalk Clip File
.CLP	Windows Clipboard File
.CLP	Finale Clip File
.CM10	CaseMap 10 Case File
.CM5	Clone Manager File
.CMA	Coach Activity File
.CMAP	CmapTools Concept Map File
.CML	Chemical Markup Language File
.CMR	Coach Results File
.CMS	Connection Manager Service Profile
.CNA	Catena Project File
.CNT	Android Cache File
.COLLAB	Blackboard Collaborate Session File
.CONTACT	Windows Contact File
.COSESSIONDB	Capture One Session File
.CPAA	Captivate Shared Action File
.CPF	Cognos Project File
.CPK	DTM Test Log File
.CPMZ	Miradi/ConPro Project File
.CPTX	Adobe Captivate Project File
.CRAM	Compressed Alignment File
.CREV	Adobe Captivate Commentable SWF File
.CRTX	Office 2007 Chart Template File
.CRY	CryENGINE Map File
.CS	ColorSchemer Studio Color Scheme
.CSA	PNA Code Calset File
.CSD	POEM / Huskygram / Singer EU Embroidery File
.CSV	Comma Separated Values File
.CTB	Cherrytree SQLite Document
.CTF	WhereIsIt Catalog File
.CTL	StepMania SMZIP Package Description File
.CTM	CrazyTalk Model File
.CTP	CrazyTalk Project File
.CTPROJECT	Cartoon Animator Project File
.CTT	Messenger Contact List
.CTV	Citavi Project
.CTV3	Citavi 3 Project File
.CUB	Analysis Services Cube File
.CUBE	Gaussian Cube File
.CURSORFX	CursorFX Theme File
.CURXPTHEME	CursorXP Theme File
.CVA	Canvas Sequence Set
.CVD	ClamAV Virus Definitions File
.CVD	Bitdefender Virus Definition File
.CVN	CineVision Encoding Session
.CWK	ClarisWorks Document
.CWW	Crossword Weaver Puzzle File
.CXA	FMAT Listmode File
.CXD	SimplePCI Data Document
.CXF	Chemical Exchange Format File
.CXF	Cuttlefish Extended Format File
.CXR	FMAT Plate Results File
.CXT	Director Protected Cast File
.CYO	Clustify Output File
.CYS	Cytoscape Session File
.CYS	Clustify Summary File
.CZI	Carl Zeiss Image Data File
.CZP	ClozePro Archive
.DA2	DeepAnalysis Save File
.DAF	Digital Anchor File
.DAL	DVD-lab Project File
.DAM	DeltaMaster Analysis Model
.DAP	Diet Analysis Profile
.DAS	DeltaMaster Analysis Session
.DAT	Data File
.DAT	Piriform Key File
.DAT	Porteus Save Container File
.DAT	Nonimmigrant Visa Application Data File
.DB	QQ Account Database File
.DB	Skype Chat History File
.DBD	DemoShield Project
.DBF	FoxPro Table
.DBGSYM	Debug Symbols File
.DCF	Document Computation Format
.DCL	DumpSec Report File
.DCM	DiskCatalogMaker Catalog File
.DCMD	DiskCatalogMaker Thumbnail-Enabled Catalog
.DCMF	DiskCatalogMaker Catalog
.DCPF	Disc Copier Project File
.DCPR	Adobe DNG Camera Profile Recipe File
.DCT	AutoCAD Dictionary File
.DDB	Digidesign Database
.DDC	DivX Descriptor File
.DDCX	DivX Descriptor 2 File
.DDT	Diagram Designer Template
.DEF	IOBit Malware Fighter Definitions File
.DES	QuickBooks Forms Template
.DET	Sage ACT! 5 Email Message
.DEVELVE	Develve Data File
.DEVICEINFO	Device Record
.DEX	Disketch Project File
.DEX	DEXIS Digital X-ray File
.DFM	Midas ViewPoint Display Form
.DFPROJ	DVD Flick Project
.DGS	3D Screen Creator Scene File
.DHCD	DHCD Computing Application Data File
.DIA	Do It Again Task File
.DICT	Dictionary File
.DIF	Data Interchange Format
.DIG	Digilink Data File
.DII	Summation Batch Load File
.DIP	DipTrace Printed Circuit Board File
.DITA	DITA Document
.DITAMAP	DITA Topic Map File
.DITAVAL	DITA Conditions File
.DKT	DiGiTIAL THUNDER Drum Kit File
.DL	Dynamic Library
.DLC	DIALux Light Control File
.DLT	DELTA Binary Dataset File
.DLTEMP	UC Browser Temporary Download File
.DM2	Toad Data Modeler 2 File
.DMC	Datamartist Data Canvas File
.DMM	iMindQ Mind Map File
.DMMX	iMindQ XML Map Bundle
.DMO	Derive Demo
.DMO	Movienizer Database File
.DMR	BrainVoyager Diffusion Weighted Project File
.DNA	GenePool DNA File
.DNA	SnapGene DNA File
.DNG	Virtual Dongle Image
.DOCKZIP	ObjectDock File
.DOT	Graphviz Graph File
.DPB	DVD Profiler Backup File
.DPN	Depiction Data File
.DPS	Kingsoft Presentation File
.DPT	Kingsoft Presentation Template
.DPX	VASCO DIGIPASS File
.DR	My Dark Diary Backup File
.DRF	Dynojet Run File
.DRL	Gerber Drill Rack File
.DRSCAN	Data Rescue Scans File
.DSB	Orchida Embroidery File
.DSB	Wondershare DVD Slideshow Builder Project
.DSC	Debian Source Control File
.DSC	Celestia Deep Space Catalog File
.DSD	Diet Studio Data File
.DSF	X-Plane Distribution Scenery Format
.DSX	Diet Studio XML File
.DSY	Directory Synchronizer Project File
.DSZ	Orchida (OES) Embroidery File
.DT	Drum Station Machine State File
.DTD	Design Tools Draw File
.DTP	dotTrace Profile File
.DTR	DATroniC Data Recording
.DUPEGURU	dupeGuru Duplicate File List
.DVB	AutoCAD VBA Project File
.DVC	Dragon Voice Command File
.DVDPROJ	iDVD Project File
.DVDS	DVDStyler Project File
.DVO	Cook'n Cookbook File
.DWI	Dance With Intensity Song File
.DWS	Adobe Dreamweaver Site Cache File
.E2P	PonyProg Device File
.EAP	Enterprise Architect Project
.EAS	RSLogix Symbol File
.EBM	Embla Recording
.EBS	EBSILON Professional Model
.EBUILD	Portage eBuild Script
.EC0	MetroCount Traffic Data File
.ECC	dvdisaster Error Correction File
.ECL	Management-Ware Mass Mailing News E-Campaign List
.ECT	Yozo Office Chart Template File
.EDAT	E-DataAid 1.x File
.EDAT2	E-DataAid 2.0 File
.EDF	ESRF Data File
.EDF	Estimator Data File
.EDFX	Estimator.NET Estimate File
.EDG	Edge Diagrammer File
.EDI	Electronic Data Interchange File
.EEP	EEPROM Data File
.EF	Diploma Exam File
.EFP	Exchange Forms Designer Template
.EFX	eFax Document
.EGP	Easy Grade Pro Gradebook File
.EKB	ZMC Visual Tablet Data
.ELS	EasyLanguage Storage File
.EM	Encore Menu Template
.EMB	Everest Embedded Bank File
.EMB	Wilcom Embroidery Design File
.EMBL	EMBL Sequence Data File
.EMD	ChessBase Tablebase
.EMLXPART	Mail Message Attachment
.EMRG	E-Merge 1.x Data File
.EMRG2	E-Merge 2.0 Data File
.ENC	Electronic Navigation Chart File
.ENEX	Evernote Archive
.ENL	EndNote Library
.ENLX	Archived EndNote Library
.ENQ	EndNote Search Options File
.ENV	Adobe Dictionary Data File
.ENW	EndNote Import File
.EPF	Edgecam Educational Part File
.EPP	Elmedia Player Playlist
.EPP	Efficient PPC Project File
.EPP	TalaPhoto Project
.EPW	EnergyPlus Weather Data File
.ER1	ERWin Entity Relationship Diagram
.ERD	Engineering Research Division Data File
.ERD	Entity Relation Diagram
.ERG	CompuTrainer Workout File
.ERP	Encarta Researcher File
.ERSX	Eraser Task List File
.ES	E-Studio 1.x Experiment File
.ES2	E-Studio 2.0 Experiment File
.ESB	Es-Builder Book File
.ESE	Millions Email Generator Email List File
.ESI	EtherCAT Slave Information
.ESP	ACD/Labs Dataset
.ESQ	Embroidery Sequence File
.EST	Construction Cost Estimate File
.ESX	Xactimate Insurance Claims Estimate
.ET	Easiteach Lesson File
.ET	Kingsoft Spreadsheets File
.ETE	Exam Testing Engine File
.ETNG	Easiteach Next Generation Document
.ETT	Kingsoft Spreadsheets Template
.EV	Echoview File
.EV3	LEGO MINDSTORMS EV3 Project
.EV3P	LEGO MINDSTORMS EV3 Program
.EV3S	LEGO MINDSTORMS EV3 Shared File
.EVX	SeeVogh Player Remote Recording
.EVY	Envoy File
.EWC2	EDIUS Waveform Cache
.EWS	EasyWorship Schedule File
.EXIF	Exchangeable Image Information File
.EXL	Export Lister File
.EXM	Boson Exam File
.EXP	Export File
.EXP	Aurora Expert Trace File
.EXPORTEDFAVORITES	Transmit Exported Favorites File
.EXX	IBM Linkway MsgPut File
.EZD	easyScan Data File
.F04	Nastran Execution Summary File
.FA	FASTA Formatted Sequence File
.FAMILYFILE	Reunion Family File
.FAR	FARO Zone File
.FASTA	FASTA Sequence File
.FBK	AutoCAD Civil 3D Field Book File
.FBQ	Trine 2 Data File
.FCPBUNDLE	Final Cut Pro Library
.FCPEVENT	Final Cut Pro Event File
.FCPPROJECT	Final Cut Pro Project File
.FCPXDEST	Final Cut Pro Share Destination File
.FCPXML	Final Cut Pro XML File
.FCS	Flow Cytometry Standard File
.FCT	FolderClone Task List
.FDB	Portfolio Catalog
.FDB	Art Explosion Catalog
.FDF	Origin Fitting Function Definition File
.FDM	Exchange Forms Designer Form Message
.FDMDOWNLOAD	Free Download Manager Partially Downloaded File
.FDT	Lucene Field Data File
.FDT	Impromptu Function Description Table File
.FDX	Food Data Exchange File
.FES	Fileless Occurrence Placeholder
.FETCHSHORTCUTS	Fetch Shortcut List FIle
.FFD	Flat File Descriptor
.FFD	SharePoint FFDDumper Log
.FFF	MAGGI Face File
.FFINDEX	FFmpegSource2 Media Index
.FFO	Adobe Photoshop File Information File
.FFWP	FormsForWeb Packet
.FG3	FX Graph 3 File
.FHC	FHC Data File
.FID	File Expander Engine Descriptions Database
.FIG	MATLAB Figure File
.FIL	Files List Object File
.FINGNET	Overlook Fing Saved Network File
.FLAME	Fractal Flames File
.FLATPAKREF	Linux Flatpak Application Package
.FLATPAKREPO	Linux Flatpak Repository
.FLG	HP System Recovery Flags File
.FLIPCHART	ActivInspire Flipchart File
.FLK	Folder Lock File
.FLL	FoxPro Dynamic-Link Library
.FLM	Adobe Scout Session
.FLO	RFFlow Flowchart File
.FLO	iGrafx FlowCharter File
.FLOW	Expression SketchFlow Data File
.FLP	Flash Project
.FLP	ActivPrimary Flipchart File
.FLT	Flight Simulator Saved Flight
.FLWA	Folder Lock Wallet File
.FM2	FCEUX 2 Movie Capture File
.FM3	FCEUX TAS Editor Movie Capture File
.FMAT	FMAT Runfile
.FMC	FormConnect Form File
.FMT	WinRAR Format File
.FNBK	Food Network Recipe Manager Data File
.FNM	Fannie Mae 1003 Data File
.FNRECIPES	Food Network Recipe File
.FO	XSL-FO Form
.FOB	Dynamics NAV Object Container File
.FODP	OpenDocument Flat XML Presentation
.FOLX	Folx Download File
.FOP	InfoZoom Protected Data File
.FOX	InfoZoom Data File
.FPA	Front Panel Encrypted Order File
.FPP	Flow Chart Visual Programming Language Project File
.FPR	Audit Workbench Project
.FPSL	FileMaker Pro Snapshot Link
.FQC	FAQ Creator File
.FRAMESET	Frame Painter for LGS Frame Set File
.FRD	Frequency Response Data File
.FRL	Electronic Form Loader File
.FRM	ADL Form
.FRM	AccountEdge Form
.FRO	dBASE IV Compiled Report
.FSA	Fragment Analysis Data File
.FSC	Practical Scriptwriter File
.FSS	Splitty Data Split File
.FSTAB	File Systems Table File
.FTL	Family Tree Legends File
.FTM	Family Tree Maker for DOS File
.FTW	Family Tree Maker File
.FWDICT	Freeway User Dictionary File
.FXF	BigFix Action File
.FXG	FX Graph File
.FXP	Adobe Flex Project File
.FZZ	Fritzing Shareable Project File
.G1M	Casio Graphing Calculator Memory File
.G3M	Casio fx-CG Prizm Memory File
.GA3	Graphical Analysis 3 Document
.GADGEPRJ	Gadge It Project
.GAL	GenePix Array List File
.GALLERY	SMART Notebook Gallery File
.GALLERYCOLLECTION	SMART Notebook Gallery Collection File
.GALLERYITEM	SMART Notebook Gallery Item File
.GAN	GanttProject Project File
.GBL	Gerber Bottom Layer Data File
.GBO	Gerber Bottom Overlay Data File
.GBP	Gerber Bottom Solder Paste Data File
.GBR	Gerber File
.GBS	Gerber Bottom Solder Mask Data File
.GC	GraphClick File
.GCG	GCG DNA Sequence File
.GCPROJ	Genome Compiler Project
.GCW	Microsoft Mathematics Worksheet
.GD3	GreatFamily Genealogy Data File
.GDBTABLE	Geodatabase Table File
.GDF	GUESS Graph Data Format File
.GDT	gretl Datafile
.GDTB	gretl Binary Datafile
.GED	GEDCOM Genealogy Data File
.GEDATA	Qlucore Data File
.GEDCOM	GEDCOM Genealogy File
.GEN	ArcView ARC/INFO UnGenerate file
.GENBANK	GenBank Data File
.GEXF	Graph Exchange XML Format File
.GFI	GIFI File
.GFORM	Google Drive Form
.GFS	Glarysoft Split File
.GGB	GeoGebra Worksheet
.GGB	GeoGebra Document
.GIS	CFS Console Game Installer Settings File
.GLA	Sothink SWF Easy Project File
.GLD	Ground Loop Design Work File
.GLO	RoboHelp Glossary File
.GLS	Babylon Glossary File
.GMAP	Google Drive My Map
.GMBL	Logger Lite Document
.GML	Graph Modeling Language File
.GML	Gerber Mill Layer File
.GMP	Global Mapper Package File
.GMS	Gesture and Motion Signal File
.GNO	GenoPro Genealogy Tree File
.GNP	GNPeak Output File
.GP3	Guitar Pro 3 File
.GPF	Grant Agreement Preparation Form
.GPI	Garmin Point of Interest File
.GPI	Gerber Photoplotter Information File
.GPJ	Grapher Project File
.GPP	Guitar Practiced Perfectly 2 Data File
.GPR	GenePix Results File
.GPR	Babylon Glossary Builder Project File
.GPSCAN	GrandPerspective Scan File
.GRA	Microsoft Graph File
.GRADE	GradeStat Document
.GRAPHML	GraphML File
.GRAPHMLZ	Zip Compressed GraphML File
.GRD	Surfer Grid File
.GRF	DPlot Graph File
.GRF	CloverDX Data Transformation Graph
.GRF	Generic Graph File
.GRF	Grapher Graph File
.GRIB	Gridded Binary File
.GRIB2	GRIB2 Meteorological Data File
.GRINDX	Juice Grinder Recipe File
.GRK	Gradekeeper Class Gradebook File
.GRP	SmarterMail Group File
.GRR	Gradekeeper Class Roster File
.GRT	Grapher Template
.GRV	Office Groove File
.GS	GemStone Document
.GTABLE	Google Drive Fusion Table
.GTAR	GNU Tar Archive
.GTL	Gerber Top Layer Data File
.GTM	GreekToMe Translation File
.GTO	Gerber Top Overlay Data File
.GTP	Gerber Top Solder Paste Data File
.GTP	Guitar Pro File
.GTS	Gerber Top Solder Mask Data File
.GUI	Dr.Explain Project File
.GUIDES	xScope Guides File
.GW	GeneWeb Source File
.GWK	GraphiCode PCB Job File
.GWP	Greetings Workshop Project File
.GXL	Graph Exchange Language File
.GXT	GIMS Graphical Text Data File
.H10	At Home Canada 2010 Tax Return
.H11	At Home Canada 2011 Tax Return
.H12	At Home Canada 2012 Tax Return
.H13	H&R Block Canada 2013 Tax Return
.H14	H&R Block Canada 2014 Tax Return
.H15	H&R Block Canada 2015 Tax Return
.H16	H&R Block Canada 2016 Tax Return
.H17	H&R Block Canada 2017 Tax Return
.H2O	H2OMAP Master Project
.H2W	H2testw File
.H5	Hierarchical Data Format 5 File
.H6X	Soft6502 Trainer/Simulator Hex File
.H77T	MGD77T Header File
.HAAS	Everfine LED Lamp Test Results File
.HAL	HotDocs Answer Library
.HCC	HydroCAD Prefab Chamber Data File
.HCE	HydroCAD Hydrograph Data File
.HCI	HydroCAD IDF Data File
.HCL	HotDocs Clause Archive
.HCR	HydroCAD Rainfall Curve Data File
.HCU	Hydrograph Units Definitons File
.HCX	ChartXL Chart
.HCXS	Canadian Product Incident Report Form
.HDA	HotDocs Auto-Assemble File
.HDF	Hierarchical Data Format File
.HDI	HotDocs Auto-Install File
.HDL	HotDocs Library File
.HDPMX	HotDocs Publisher Mapping XML File
.HDS	Microsoft PlayReady Data File
.HDUMX	HotDocs User Mapping XML File
.HELPINDEX	Help Index Document
.HIN	HyperChem Input File
.HJT	TreePad 6 Database File
.HKDB	Apple iTunes Library File
.HL	HeuristicLab Storage File
.HM3	Help & Manual 3 Project
.HML	HostMonitor TestList File
.HMT	HighMAT File
.HMXP	Help & Manual XML Project
.HMXZ	Help & Manual Compressed Project
.HOL	Outlook Holidays File
.HPP	Haluha Pearls File
.HS2	HyperRESEARCH 2 Study File
.HSDT	Thinkfree Office NEO Show Template
.HSK	Huskey Truss & Building Supply Import File
.HST	History File
.HTB	Audacity Help File
.HTG	HackTheGame Mission Pack
.HUH	HydroCAD Unit Hydrograph Definitions File
.HVC	HotDocs Variable Collection File
.HYV	Team Manager Meet Event File
.I5Z	IUCLID 5 Import/Export File
.I7XP	Inform 7 Extension Project
.IAS	Intermodulation Analysis System File
.IBA	iBooks Author Document
.IBATEMPLATE	iBooks Author Document Template
.IBCD	InstantBingoCard Document
.IBG	ImgBurn Graph File
.ICALEVENT	iCal Event File
.ICALTODO	iCal To Do File
.ICG	Image Comparer Gallery File
.ICHAT	iChat Saved Chat Log
.ICR	Image Comparer Results File
.ID2	Windows Live Messenger Emoticon File
.ID3TAG	MP3 Skype Recorder Temporary File
.IDX	Navigation POI File
.IDX	HMI Historical Log Index File
.IES	IES Photometric Data File
.IFAITH	iFaith SHSH File
.IFICTION	iFiction Metadata File
.IFM	Informed Form Data Document
.IFS	InfoSlips Package
.IGC	Anime List Builder Input File
.IGG	SuiteProfiler Color Map File
.IGMA	INTUS Graph Mask Archive
.IGN	RoboHelp Ignore List File
.IGQ	Indigo Queue File
.II	IconWorkshop Extended Information File
.IIF	Intuit Interchange Format File
.ILG	InstallScript Log File
.ILOGICVB	iLogic VB File
.IMA	Sage ACT! Email Message
.IMAGE	OpenQwaq Image
.IMOVIEEVENT	iMovie Event File
.IMP	Imagine Project
.IMR	Impromptu Report File
.IMT	My Time Data File
.IN	Input File
.INCP	InCopy CS3 Package File
.INI	Finale Preferences File
.INK	Mimio Notebook
.INK	Mimio Ink Data File
.INP	gretl Script File
.INP	Abaqus Input File
.INS	LaTeX Installer Script
.INS	Inspiration File
.INX	Compiled Script
.IP	IconPackager Theme File
.IPALIAS	iPhoto Alias File
.IPHOTO	iPhoto Library File
.IPLB	iPhoto Library Archive Document
.IPMETA	Apple iPhoto Metadata File
.IPR	iProcrastinate Data File
.IPROJECT	iClone Project File
.IQ4	IQ4E Controller Strategy File
.IQMOL	IQmol Archive
.IROCK	intelliRock Sensor Data File
.IRP	Internet Researcher Project File
.IRR	Brewer Lamp File
.IRX	Brewer Irradiation File
.IS1	M3 Sakura Real-Time Save 1 File
.IS1	Synergy/DE Data Index File
.IS2	Thermal Image Data File
.ISF	Inspiration Flowchart Document
.ISH1	Animation-ish Wiggledoodle-ish Document
.ISH2	Animation-ish FlipBook-ish Document
.ISH3	Animation-ish Advanced-ish Document
.ISPC	Image Surfer Pro Collection File
.IST	Inspiration Template
.ITE	iTunes Extras File
.ITL	iTunes Library File
.ITLP	iTunes LP Album File
.ITM	iThink Model File
.ITMSP	iTunes Store Package
.ITN	TomTom Navigator Itinerary File
.ITX	ITX Form Template
.IUP	Fritz Update File
.IVC	InteliSea Vessel Configuration File
.IVD	Bitdefender Incremental Virus Definitions File
.IVS	Initialization Vector File
.IVT	Beyond 20/20 Table File
.IW	Chain Engineering Database File
.IWM	iWriteMusic Data File
.IWXDATA	iWorx Data File
.IX2	WordPerfect Address Book File
.IXB	Ulead Disc Image
.JASPER	JasperReports Data File
.JBI	Motoman Robot Job File
.JBR	Motoman Robot Related Job File
.JCLIC	JClic Project File
.JDAT	J&ASoft Data File
.JDB	Symantec Endpoint Protection Update File
.JEF	Janome Embroidery Format
.JGCSCS	EditPad Custom Syntax Coloring Scheme File
.JMP	JMP Data File
.JNB	SigmaPlot Notebook File
.JNT	Windows Journal File
.JOBOPTIONS	Adobe Joboptions File
.JOINED	HJ-Split Data File
.JPH	JProbe Memory Snapshot
.JRPRINT	JasperReports Print File
.JRXML	JasperReports Layout File
.JSDA	Jazer Data File
.JTBACKUP	Just Type Backup File
.JUDE	JUDE Project File
.KAL	Kratos Vision Data File
.KAP	BSB Chart Image File
.KBITS	Bits'N'Picas Bitmap Font File
.KBS	Keyboard Script File
.KDBX	KeePass Password Database
.KDC	Kaspersky Virus Database File
.KEB	Kaspersky Virus Bases File
.KELGFILE	Best Free Keylogger Log File
.KEY	Apple Keynote Presentation
.KEY	Keynote Presentation
.KEY-TEF	Keynote iCloud Presentation
.KEYCHAIN	Mac OS X Keychain File
.KEYTAB	Kerberos Keytab File
.KGTEMP	KuGou Temporary Cache File
.KID	Kidspiration Document
.KISMAC	KisMAC Webservice File
.KMA	Correlate Archive File
.KMS	Correlate Solutions File
.KMY	KMyMoney Data File
.KNO	DigIN Serialized Break Model
.KPF	Komodo Project File
.KPP	Kid Pix Presentation
.KPR	KPresenter Presentation
.KPX	Kid Pix Picture
.KPZ	Komodo Template File
.KRC	Mouse and Key Recorder Macro File
.KSM	Pfaff Embroidery Design File
.KTH	Keynote Theme
.KVTML	KWordQuiz File
.L	Game of Life File
.L3DW	Studio Store Visualizer External Library File
.L6T	Line 6 Tone File
.LA	Libtool Archive
.LABEL	DYMO Label File
.LAS	LIDAR Data Exchange File
.LAV	DNA Sequence Alignment File
.LAY	Tecplot Layout File
.LAYOUTDESIGNER	QuickBooks Layout Designer File
.LBL	NiceLabel Template File
.LBX	FoxPro Label File
.LCD	ABBYY Language File
.LCM	Lipikar Custom Map File
.LD2	Lingoes Dictionary File
.LDB	Microsoft Access Lock File
.LDF	Lingoes Dictionary Source File
.LDF	LaserDisc FLAC-compressed File
.LDF	SQL Server Transaction Log File
.LDIF	LDAP Data Interchange Format File
.LDS	LaserDisc Sample
.LEV	Levelogger Software Data File
.LEX	Adobe Linguistic Library Data File
.LFP	IPRO LFP File
.LG2	Message Queuing Message State File
.LGC	WordPerfect DTD Compiler Logic File
.LGF	PMSCAN Log File
.LGH	HMI Historical Log File
.LGI	Multimedia Logic File
.LGL	Large Graph Layout Edge File
.LHR	Quicken Financial Life for Mac File
.LIB	Generic Data Library
.LIB	Finale Library
.LIB4D	Cinema 4D Preset Library
.LIF	LEGO Digital Designer Assets File
.LIF	TurboTax Information Archive
.LIFE	Light Notebook File
.LIN	X-Plane Painted Line File
.LIST	APT List File
.LIVEREG	Symantec Antivirus Session File
.LIVEUPDATE	Symantec LiveUpdate File
.LIX	ExtendSim Simulation Software Library
.LLB	LabVIEW Library File
.LMF	Quartus II Library Mapping File
.LMS	LenMus Score File
.LMX	Landmark Exchange File
.LNG	Language Application Support File
.LNG	MAME Language File
.LNG	AVG Language File
.LNT	LiveNote Case File
.LOC	GPS Location File
.LOCALSTORAGE	WebKit Local Storage Data File
.LOG	AntiVir Report Log File
.LP7	LP7 Digitally Signed File
.LPDB	Librarian Pro Database File
.LPK	Tecplot Layout Package
.LPKG	Appspace Language Pack
.LPMD	LPMD Molecular Data File
.LPP	LabelPrint Project File
.LQM	LG QuickMemo Note
.LRCAT	Adobe Lightroom Catalog File
.LRDATA	Adobe Lightroom Data File
.LRLIBRARY	Adobe Lightroom CC Library File
.LRM	Encarta Class Server Learning Resource File
.LS3	Band-in-a-Box Third-Party Styles File
.LSA	Domino Designer Agent File
.LSD	Lingvo Dictionary File
.LSF	Logos Library System File
.LSL	LightScribe Label
.LSP	LANsurveyor Poll List
.LSR	LANsurveyor Report
.LST	LightScribe Label Template
.LSU	LANsurveyor Map
.LUCIDCOLORSET	Lucid Color Set File
.LUD	Lingvo User Dictionary File
.LUT	RadioRA Essentials Project Database
.LUTX	RadioRA 2 Essentials Project Database
.LVM	LabVIEW Measurement File
.LVW	Livewire Document
.LW4	Lightwright File
.LWD	Lightworks Data File
.LXF	LEN Exchange Format File
.LXK	Lexicon Link-up File
.LY	LilyPond File
.LYT	Adminsoft Document Layout File
.M	Mathematica Input File
.MAF	Mutation Annotation Format File
.MAI	Microsoft Mail File
.MAP	Rigs of Rods Key Assignments File
.MAP	Weather Defender Map
.MAS	MEGA Alignment Sequence File
.MAT	MATLAB MAT-File
.MBA	MailNavigator Mail Box Archive
.MBA	MyBoard Activity File
.MBD	Multimedia Builder Project File
.MBG	Microsoft Mailbag
.MBG	Mailbag Assistant Mailbox File
.MBP	MediaShow Burning Project File
.MBX	Outlook Express Mailbox
.MC1	MedCalc Data File
.MCAT	Adobe Lightroom CC Catalog File
.MCD	Mathcad Document
.MCDX	Mathcad Prime Document
.MCF	MARS Component File
.MCMAC	MasterCook Mac Document
.MCP	Megacubo Package
.MD	Moneydance Financial Data File
.MD8	GarageCUBE Modul8 Project
.MD8	Mediator Project File
.MDB	Avid Media Database
.MDC	Multi Dimension Cube File
.MDD	MDict Resource File
.MDF	Measurement Data Format File
.MDJ	StarUML Model File
.MDL	Rational Rose Model File
.MDL	MathWorks Simulink Model
.MDM	HLM Multivariate Data Matrix File
.MDSX	MEGA Saved Session
.MDX	MDict Dictionary File
.MDX	Multiple Index File
.MDX	Rational XDE Model File
.MEG	MEGA Data File
.MEGA	Megacubo XML Metafile
.MEM	Mnemosyne Card Collection
.MEM	GreekToMe Memories File
.MEMO	Samsung Memo
.MENC	Windows Mobile Encrypted File
.MERLIN2	Merlin Project File
.MET	eMule Resource File
.MEX	Macro Express File
.MF4	ASAM Measurement Data Format File
.MFA	MobileFrame App File
.MFL	Mozilla FastLoad File
.MFL	ModFit LT Analysis Report File
.MFO	MobileFrame Object File
.MFO	Perl ModInfo Descriptor File
.MFP	Macromedia FlashPaper Document
.MFP	MobileFrame Package
.MFT	Kaspersky File Table
.MFU	MobileFrame Update File
.MGOURMET	MacGourmet Deluxe Document
.MGOURMET4	MacGourmet Deluxe 4 Document
.MINDNODE	MindNode Document
.MJK	Question File
.MLB	MyLabel Designer Deluxe Project File
.MLM	MolMeccano File
.MLS	Milestones Simplicity File
.MM	Mind Map File
.MMAP	MindManager Map File
.MMC	Microsoft Media Catalog
.MMF	Meal-Master Recipe File
.MMF	Microsoft Message File
.MML	MyMailList & AddressBook File
.MML	Microsoft Clip Organizer File
.MMM	Money Manager File
.MMM	Multiple Master Metric Data File
.MMP	MindManager Mind Map
.MMP	Master Album Maker Project
.MMW	AceMoney Money File
.MMW	Microsoft Clip Organizer Media Catalog File
.MNC	My Notes Center Notebook
.MNG	Yamaha PSR Disk Manager File
.MNK	My Notes Keeper Notebook
.MNO	Macromedia Design Note
.MOD	AMPL Model File
.MOHO	Moho Animation Project
.MOL	MDL Molfile
.MONEY	Money Data File
.MOSAIC	MacOSaiX Mosaic File
.MOX	ExtendSim Simulation Software Model
.MPD	File List Creator Playlist
.MPF	MARS Project File
.MPH	Photostory Deluxe Project
.MPJ	RoboHelp HTML Project
.MPJ	Minitab Project File
.MPKT	MOPEKS Trial File
.MPP	Microsoft Project File
.MPP	MobileFrame Project Publisher File
.MPPZ	MagicPlot Project File
.MPR	FileMaker Dictionary File
.MPR	Direct Mail Project File
.MPROJ	Mine-imator Project
.MPS	Mathematical Programming System File
.MPX	Microsoft Project Exchange File
.MPZ	Miradi Project File
.MS-ONE-STUB	Microsoft OneNote Stub
.MS10	Multisim 10 Circuit Design File
.MSB	Oracle Binary Message File
.MSC	MuseScore Composition File
.MSCT	MOPEKS Script File
.MSF	Blue Card Manager Merit Badge Mastersheet File
.MSP	ClarisWorks Dictionary File
.MSS	MyScreenSaver Builder File
.MTE	Mp3tag Export Configuration File
.MTF	Mortality Table File
.MTFF	MadgeTech Data Logger Report
.MTH	Derive Math File
.MTM	Macrofocus TreeMap File
.MTS	MEGA Tree Session File
.MTW	Minitab Worksheet File
.MTXT	MOPEKS Text File
.MUM	MATLAB Unit Operation Model File
.MUP	Music Publisher Score
.MVM	Photostory Deluxe Slideshow
.MW	Maple Worksheet
.MWF	MapGuide Author Map Window File
.MWS	Maple Classic Worksheet
.MWX	MicroWorlds EX File
.MX	Mathematica Serialized Package File
.MXAD	Mandelbrot Explorer All Data File
.MXC2	MAGIX Cache File
.MXI	Adobe Extension Information File
.MYD	Everfine Photomoetric Results File
.MYI	MySQL MyISAM Index File
.MYO	AccountEdge Company File
.NAM	Aqua3D Network File
.NAM	MODFLOW Name File
.NAMES	Data Set Description File
.NAP	McAfee ePO Network Associates Package
.NAS	Nastran Input File
.NBE	Nessus Report File
.NBIB	PubMed Bibliographic Citation File
.NBP	Mathematica Player Notebook File
.NC	NetCDF File
.NCORX	Adobe Encore Project
.NCT	Now Contact File
.NDB	ClamAV Extended Signature File
.NDIF	Nokia Data File
.NDK	Lotus Notes Design Elements File
.NDS	Nero DiscSpan Compilation File
.NDX	dBASE Index File
.NDX	Neat 5 Archive File
.NESSUS	Nessus Network Security Scanner File
.NET	netViz Project File
.NETA	Netica Binary File
.NETSPD	NetSpot Survey Project File
.NETSPM	NetSpot Map File
.NFI	Netflix Information File
.NFL	Nokia Flash Lite Package
.NFO	Folio Views Infobase File
.NFS	Netflix Subtitle File
.NITF	National Imagery Transmission Format File
.NL	Note Ledge File
.NLOGO	NetLogo Model File
.NLOGO3D	NetLogo 3D Model File
.NMEA	NMEA Data File
.NMIND	NovaMind Mind Map File
.NMM	Samsung Memo Backup File
.NMP	NewsMaker Project File
.NNI	ANNI Neural Network Investing File
.NNP	ANNI Neural Network Portfolio File
.NOT	Notation File
.NOT	Finale Note File
.NP	Portfolio NetPublish File
.NPL	Nokia Playlist File
.NPR	Nuendo Project File
.NPT	Portfolio NetPublish Template
.NPY	Python NumPy Array File