List of Data file extensions

There are many different data file extensions and data file types used with computers, and you'll find an entire list of data file extensions and types on our computer files and file extensions page. It is impossible to remember all file extensions and their associated software programs.

Below is the list of data file extensions, broken into categories by sort of files along with the developer and available 100% free online data file tools and apps.

Extension	File Type	Free Apps
._PLAYMUSICID	Google Play Music ID File	Free _PLAYMUSICID Apps
.{PB	Corel WordPerfect Document Index File	Free {PB Apps
.~HM	HostMonitor TestList Backup File	Free ~HM Apps
.001	Split Archive File	Free 001 Apps
.17T	2017 StudioTax Return File	Free 17T Apps
.1PE	TurboTax Form File	Free 1PE Apps
.1PH	TurboTax File	Free 1PH Apps
.3DMARK-RESULT	3DMark Results File	Free 3DMARK-RESULT Apps
.3DMDEF	3DMark Definition File	Free 3DMDEF Apps
.3DP	3DMark2011 SE Project File	Free 3DP Apps
.3DR	3DMark Results File	Free 3DR Apps
.3DR	3D Rad Project File	Free 3DR Apps
.3DT	3D Topicscape File	Free 3DT Apps
.3DW	Studio Store Visualizer 3D Environment File	Free 3DW Apps
.3ME	TurboTax Form File	Free 3ME Apps
.3PE	TurboTax 2008 Form File	Free 3PE Apps
.4DV	4D View Ultrasound File	Free 4DV Apps
.4FS	Puppy Linux Save State File	Free 4FS Apps
.5VW	5View Packet Capture File	Free 5VW Apps
.73C	TI-73 Constant File	Free 73C Apps
.73L	TI-73 Data List File	Free 73L Apps
.8XG	TI-83/84 Plus Group File	Free 8XG Apps
.8XK	TI-83 Plus Application Upgrade File	Free 8XK Apps
.8XS	TI-83/84 Plus String File	Free 8XS Apps
.8XV	TI-83/84 Plus Variable File	Free 8XV Apps
.A1WISH	Audials Wishlist File	Free A1WISH Apps
.A3L	Authorware 3 Library	Free A3L Apps
.A3M	Authorware 3 Macintosh File	Free A3M Apps
.A3W	Authorware 3 Windows File	Free A3W Apps
.A4L	Authorware 4 Library	Free A4L Apps
.A4M	Authorware 4 Macintosh File	Free A4M Apps
.A4W	Authorware 4 Windows File	Free A4W Apps
.A5L	Authorware 5 Library	Free A5L Apps
.A5RPT	Alpha Five Project Report File	Free A5RPT Apps
.A5W	Authorware 5 Windows File	Free A5W Apps
.A5WCMP	Alpha Five Web Components File	Free A5WCMP Apps
.A65	Authorware 6.5 File	Free A65 Apps
.AAE	Sidecar Image Edit File	Free AAE Apps
.AAM	Authorware Map File	Free AAM Apps
.AAN	Pro Tools Elastic Audio Analysis File	Free AAN Apps
.AAO	Agenda At Once File	Free AAO Apps
.AB	DNA Sequence File	Free AB Apps
.AB1	DNA Electropherogram File	Free AB1 Apps
.AB2	Print Shop Address Book File	Free AB2 Apps
.AB3	PhotoImpact 3 Album File	Free AB3 Apps
.ABCD	AudioVisual Book Data File	Free ABCD Apps
.ABCDP	Address Book CoreData Person File	Free ABCDP Apps
.ABDATA	Adobe Bridge Data File	Free ABDATA Apps
.ABI	DNA Chromatogram File	Free ABI Apps
.ABKPRJ	Ashampoo Backup Project	Free ABKPRJ Apps
.ABP	AVS Barcode Profile	Free ABP Apps
.ABT	Annotated Braille Text File	Free ABT Apps
.ABY	AOL Address Book File	Free ABY Apps
.ACA	Agent Character Animation File	Free ACA Apps
.ACC	Graphics Accounts Data File	Free ACC Apps
.ACF	Agent Character Data File	Free ACF Apps
.ACF	X-Plane Aircraft File	Free ACF Apps
.ACG	Audio Comparer Group File	Free ACG Apps
.ACG	Agent Preview File	Free ACG Apps
.ACMI	Tacview Flight Track File	Free ACMI Apps
.ACQ	AcqKnowledge Data Graph File	Free ACQ Apps
.ACR	Audio Comparer Results File	Free ACR Apps
.ACZ	AppCraft Project	Free ACZ Apps
.ADCP	Adobe Device Central Project File	Free ADCP Apps
.ADDISM	Addism Data File	Free ADDISM Apps
.ADI	Amateur Data Interchange Format	Free ADI Apps
.ADICHT	LabChart Data File	Free ADICHT Apps
.ADIDAT	ADInstruments Simple Data File	Free ADIDAT Apps
.ADIF	Amateur Data Interchange Format	Free ADIF Apps
.ADOBEBRIDGE	Adobe Bridge URL FIle	Free ADOBEBRIDGE Apps
.ADOX	ActivDox Document	Free ADOX Apps
.ADT	ACT! Document Template	Free ADT Apps
.ADU	Addict User Dictionary File	Free ADU Apps
.ADV	Nortek Acoustic Doppler Velocimeter File	Free ADV Apps
.ADVS	Adobe Device Central Device Set	Free ADVS Apps
.ADX	Approach Index File	Free ADX Apps
.AECACHE	After Effects Cache File	Free AECACHE Apps
.AES	ooVoo Log File	Free AES Apps
.AFE	Avid File Exchange File	Free AFE Apps
.AFF	Spellcheck Dictionary Description File	Free AFF Apps
.AFT	Ancestry.com Family Tree Database	Free AFT Apps
.AGD	AgileGraph Data File	Free AGD Apps
.AGGR	Adobe Captivate Aggregate File	Free AGGR Apps
.AGLIB	Adobe Lightroom Library	Free AGLIB Apps
.AGTOOLKIT	Adobe Lightroom Toolkit	Free AGTOOLKIT Apps
.AIFB	AIF Builder Project File	Free AIFB Apps
.AIV	AIVault Data File	Free AIV Apps
.ALC	Dynamics AX Label Description File	Free ALC Apps
.ALD	Dynamics AX Application Label Data File	Free ALD Apps
.ALDF	Aldfaer Genealogy File	Free ALDF Apps
.ALF	Alf Interactive Test	Free ALF Apps
.ALF	Unity License Request File	Free ALF Apps
.ALG	AlgoBox Algorithm File	Free ALG Apps
.ALI	Dynamics AX Label Index File	Free ALI Apps
.ALI	RoboHelp Alias File	Free ALI Apps
.AMB	All My Books Database File	Free AMB Apps
.AMB	AIMMS Model File	Free AMB Apps
.AMC	Ant Movie Catalog File	Free AMC Apps
.AML	Automation Markup Language File	Free AML Apps
.AMM	All My Movies Database File	Free AMM Apps
.AMSORM	OnLine Ringman Auction Client File	Free AMSORM Apps
.AMU	PictureGear Studio Photo Album File	Free AMU Apps
.AN1	Street Atlas USA Draw File	Free AN1 Apps
.AN8	Vector NTI DNA File	Free AN8 Apps
.ANIME	Anime Studio Document	Free ANIME Apps
.ANIMEPROJ	Anime Studio Document Data File	Free ANIMEPROJ Apps
.ANME	Anime Studio Document	Free ANME Apps
.ANN	Lingvo Dictionary Annotation File	Free ANN Apps
.ANS	HotDocs Binary Answer File	Free ANS Apps
.ANSYM	Adobe Edge Animate Library File	Free ANSYM Apps
.ANX	HotDocs Answer File	Free ANX Apps
.APALBUM	Aperture Album File	Free APALBUM Apps
.APH	Ability Album File	Free APH Apps
.APLIBRARY	Aperture Library	Free APLIBRARY Apps
.APPCONTENT-MS	Application Content File	Free APPCONTENT-MS Apps
.APXL	Keynote Presentation Data File	Free APXL Apps
.ARA	Archivaldo Resource Archive	Free ARA Apps
.ARC	Nintendo Archive File	Free ARC Apps
.ARC.LH	Nintendo Archive File	Free ARC.LH Apps
.ARCHITECT	SQL Power Architect Project	Free ARCHITECT Apps
.ARFF	Attribute-Relation File Format	Free ARFF Apps
.ARH	ArheoStratigraf Project File	Free ARH Apps
.ARN	Autoruns Data File	Free ARN Apps
.ART	BERNINA Embroidery File	Free ART Apps
.ARXML	AUTOSAR XML File	Free ARXML Apps
.AS	AppleSingle File	Free AS Apps
.AS2	ActivStudio Resource Pack	Free AS2 Apps
.ASHPRJ	Ashampoo Burning Studio Project	Free ASHPRJ Apps
.ASM	Pro/ENGINEER Assembly File	Free ASM Apps
.ASND	Adobe Sound Document	Free ASND Apps
.ASR	Adobe Photoshop Scratch File	Free ASR Apps
.AST	ClarisWorks Assistant File	Free AST Apps
.ATF	Axon Text File	Free ATF Apps
.ATOMSVC	Atom Service Document	Free ATOMSVC Apps
.ATS	Advanced ETL Transformation Script	Free ATS Apps
.ATTR	iPhoto Attributes File	Free ATTR Apps
.AUR	Aurora Timetable File	Free AUR Apps
.AUTOSAVE	Fusion Auto-save File	Free AUTOSAVE Apps
.AVC	Kaspersky Virus Database	Free AVC Apps
.AVENIRPROJ	StoryMill Project	Free AVENIRPROJ Apps
.AVHDX	Automatic Virtual Hard Drive File	Free AVHDX Apps
.AVJ	AntiVir Job File	Free AVJ Apps
.AVL	AntiVir Status Report File	Free AVL Apps
.AVP	AntiVir Profile	Free AVP Apps
.AVRO	Avro Data File	Free AVRO Apps
.AW	Answer Wizard File	Free AW Apps
.AWBR	WriteOnline WordBar File	Free AWBR Apps
.AWDB	Access Walker Database File	Free AWDB Apps
.AWG	Activeworlds Object Group File	Free AWG Apps
.AZW3F	Amazon eBook Metadata File	Free AZW3F Apps
.AZZ	AZZ Cardfile Database File	Free AZZ Apps
.AZZX	Uncompressed AZZ Cardfile Data File	Free AZZX Apps
.BAFL	BurnAware File List	Free BAFL Apps
.BAR	Brew MP Binary Application Resource File	Free BAR Apps
.BASERPROJ	DNA Baser Project File	Free BASERPROJ Apps
.BC	Adobe Bridge Cache File	Free BC Apps
.BCC	Calendar Creator File	Free BCC Apps
.BCI	Belarc Advisor Report File	Free BCI Apps
.BCL	Illumina Base Call File	Free BCL Apps
.BCM	Business Contact Manager File	Free BCM Apps
.BCM	Adobe Bridge Cache File	Free BCM Apps
.BCT	Adobe Bridge Thumbnail Cache File	Free BCT Apps
.BDC	Babylon Dictionary File	Free BDC Apps
.BDF	Binary Data File	Free BDF Apps
.BDF	Bulk Data Input File	Free BDF Apps
.BDIC	Chrome Dictionary File	Free BDIC Apps
.BED	UCSC BED Annotation Track File	Free BED Apps
.BFX	Bitware Fax Document	Free BFX Apps
.BGL	Babylon Glossary File	Free BGL Apps
.BGT	Graphics Accounts Data File	Free BGT Apps
.BHO	Behold Organize File	Free BHO Apps
.BIM	Bytessence InstallMaker Document	Free BIM Apps
.BIN	Generic Binary File	Free BIN Apps
.BIN	Nintendo Wii Data File	Free BIN Apps
.BINARY	PC Building Simulator Save File	Free BINARY Apps
.BINARYCOOKIES	Safari Cookies File	Free BINARYCOOKIES Apps
.BIONIX	BioniX Wallpaper Playlist File	Free BIONIX Apps
.BJO	TabRite Tablature File	Free BJO Apps
.BLB	Blob Data File	Free BLB Apps
.BLD	Envisioneer Building Project File	Free BLD Apps
.BLG	Windows Binary Performance Log File	Free BLG Apps
.BLG	BibTeX Log File	Free BLG Apps
.BLN	Golden Software Blanking File	Free BLN Apps
.BLOCKPLT	LEGO MINDSTORMS NXT Block Palette File	Free BLOCKPLT Apps
.BLOGTHIS	Windows Live Writer Data File	Free BLOGTHIS Apps
.BLUEBUTTON	VA Blue Button Data File	Free BLUEBUTTON Apps
.BM2	Boardmaker Interactive Board File	Free BM2 Apps
.BMS	BIOWRAP Multi-Layer Security File	Free BMS Apps
.BNK	Spotify Playlist File	Free BNK Apps
.BNK	ExamView Question Bank File	Free BNK Apps
.BOK	TestGen Testbank File	Free BOK Apps
.BOOK	iBooks Author Document	Free BOOK Apps
.BOOK	Budget In Brief Book File	Free BOOK Apps
.BOOKTEMPLATE	iBooks Author Document Template	Free BOOKTEMPLATE Apps
.BOX	E-mail Mailbox	Free BOX Apps
.BPD	Binary Printer Description File	Free BPD Apps
.BPD	Business Plan Pro Document	Free BPD Apps
.BPDX	Business Plan Pro Document	Free BPDX Apps
.BPHYS	Blender Cache File	Free BPHYS Apps
.BPJ	Boxsim Simulation Project	Free BPJ Apps
.BPL	Bore Plan Log	Free BPL Apps
.BPLX	Bore Plan XML File	Free BPLX Apps
.BPM	Trados AutoSuggest Dictionary File	Free BPM Apps
.BRAIN	PersonalBrain Mind Map File	Free BRAIN Apps
.BRD	EAGLE Circuit Board File	Free BRD Apps
.BRF	Braille Ready Format File	Free BRF Apps
.BRIDGECACHE	Adobe Bridge Cache Export File	Free BRIDGECACHE Apps
.BRL	MicroBraille File	Free BRL Apps
.BRN	BrainStorm Data File	Free BRN Apps
.BRS	RoboHelp Browse Sequence File	Free BRS Apps
.BRW	Calyx Point Borrower File	Free BRW Apps
.BSD	BSDL File	Free BSD Apps
.BSDL	Boundary Scan Description Language File	Free BSDL Apps
.BTF	NationsBank Check Images	Free BTF Apps
.BTIF	NationsBank Check Image File	Free BTIF Apps
.BTINSTALL	uTorrent Installer File	Free BTINSTALL Apps
.BTM	BizTalk Map File	Free BTM Apps
.BUL	I4 Bullseye Data File	Free BUL Apps
.BVP	VodaHost BlueVoda Project File	Free BVP Apps
.C3D	Coordinate 3D File	Free C3D Apps
.C4P	CrossOver Software Installer File	Free C4P Apps
.CAA	Chinese Academic Article Link File	Free CAA Apps
.CADC	Corpatla Data Container File	Free CADC Apps
.CAF	Class Action Gradebook File	Free CAF Apps
.CAMERROR	Camtasia Studio Error File	Free CAMERROR Apps
.CAMM	espresso Mind Map Document	Free CAMM Apps
.CAP	Packet Capture File	Free CAP Apps
.CAPT	Capito Data File	Free CAPT Apps
.CAPX	Capella CapXML File	Free CAPX Apps
.CAR	Car Explorer Data File	Free CAR Apps
.CAT4D	Cinema 4D Catalog	Free CAT4D Apps
.CAV	Comodo Virus Definitions File	Free CAV Apps
.CAWR	Espresso workreport Document	Free CAWR Apps
.CBG	CyberGauge Data File	Free CBG Apps
.CBG	ChessBase Game Moves File	Free CBG Apps
.CBMAP	Containment Breach Map File	Free CBMAP Apps
.CBXML	CodeBox Library	Free CBXML Apps
.CBZ	ChessBase Encrypted Database Archive	Free CBZ Apps
.CCA	Multimedia Fusion File	Free CCA Apps
.CCA	cc:Mail Archive File	Free CCA Apps
.CCH	Corel Chart File	Free CCH Apps
.CCLD	Construction Clouds Data File	Free CCLD Apps
.CCP	RIB Import Converter Profile	Free CCP Apps
.CCR	ASTM Continuity of Care Record	Free CCR Apps
.CCT	Director Protected Cast Resource	Free CCT Apps
.CDF	Common Data Format	Free CDF Apps
.CDF	NetCDF Format File	Free CDF Apps
.CDF	Nominal Small Business Accounting Company Data File	Free CDF Apps
.CDF	Affymetrix Chip Definition File	Free CDF Apps
.CDF	Content Definition File	Free CDF Apps
.CDI	INTEX Output File	Free CDI Apps
.CDM	Conceptual Data Model File	Free CDM Apps
.CDP	CD/Spectrum Pro File	Free CDP Apps
.CDP	ConceptDraw PROJECT File	Free CDP Apps
.CDPX	ConceptDraw PROJECT XML File	Free CDPX Apps
.CDPZ	ConceptDraw PROJECT Document	Free CDPZ Apps
.CDR	Crash Data Retrieval Data File	Free CDR Apps
.CDX	Compound Index File	Free CDX Apps
.CDX	ChemDraw Exchange File	Free CDX Apps
.CDXML	ChemDraw XML File	Free CDXML Apps
.CEF	Class Action Gradebook Elementary File	Free CEF Apps
.CEL	Affymetrix Probe Results File	Free CEL Apps
.CEL	Battery 3 Drum Cell File	Free CEL Apps
.CELTX	Celtx Project File	Free CELTX Apps
.CERTSIGNINGREQUEST	Apple Developer Signing Certificate Request File	Free CERTSIGNINGREQUEST Apps
.CFA	ComProbe Analyzer Capture File	Free CFA Apps
.CFB	Compound Binary File	Free CFB Apps
.CFS	CFS Console File	Free CFS Apps
.CFX	Flow-Cal Data File	Free CFX Apps
.CGD	Common Grid File	Free CGD Apps
.CHC	HCFR Colormeter Data File	Free CHC Apps
.CHG	Quicken Online Data File	Free CHG Apps
.CHK	InterCheck Checksum Database	Free CHK Apps
.CHN	Ethnograph Data	Free CHN Apps
.CHV	ChView Interactive Star Map File	Free CHV Apps
.CIF	Crystallographic Information File	Free CIF Apps
.CIRC	Logisim Circuit File	Free CIRC Apps
.CKT	CircuitMaker File	Free CKT Apps
.CL2	HY-TEK Meet Results File	Free CL2 Apps
.CL4	Easy CD Creator 4 Project File	Free CL4 Apps
.CLASSLIST	SMART Notebook Class List File	Free CLASSLIST Apps
.CLB	ICQ Contact List	Free CLB Apps
.CLD	ClamAV Virus Definitions File	Free CLD Apps
.CLG	Collage Maker Project File	Free CLG Apps
.CLIX	CLIX Command File	Free CLIX Apps
.CLK	Corel R.A.V.E Project File	Free CLK Apps
.CLKM	Clicker Matching Set File	Free CLKM Apps
.CLKS	Clicker Sentences File	Free CLKS Apps
.CLKTK	Clicker Talk Set File	Free CLKTK Apps
.CLKV	Clicker Communicator Vocabulary Set File	Free CLKV Apps
.CLM	MagicJack Call Log File	Free CLM Apps
.CLM	GenePattern CEL Descriptor File	Free CLM Apps
.CLP	CrazyTalk Clip File	Free CLP Apps
.CLP	Windows Clipboard File	Free CLP Apps
.CLP	Finale Clip File	Free CLP Apps
.CLX	Standard Dictionary File	Free CLX Apps
.CM10	CaseMap 10 Case File	Free CM10 Apps
.CM5	Clone Manager File	Free CM5 Apps
.CMA	Coach Activity File	Free CMA Apps
.CMAP	CmapTools Concept Map File	Free CMAP Apps
.CMBL	Logger Pro Data File	Free CMBL Apps
.CML	Chemical Markup Language File	Free CML Apps
.CMR	Coach Results File	Free CMR Apps
.CMS	Connection Manager Service Profile	Free CMS Apps
.CN1	CNR Modem Initialization Data File	Free CN1 Apps
.CNA	Catena Project File	Free CNA Apps
.COL	Capture One Session File	Free COL Apps
.COLLAB	Blackboard Collaborate Session File	Free COLLAB Apps
.COLLECTION	Adobe Bridge Collection File	Free COLLECTION Apps
.COMPOSITIONMODEL	Invantive Composition Data Model File	Free COMPOSITIONMODEL Apps
.CONTACT	Windows Contact File	Free CONTACT Apps
.COSESSIONDB	Capture One Session File	Free COSESSIONDB Apps
.COVERAGE	Visual Studio Code Coverage Report	Free COVERAGE Apps
.CPAA	Captivate Shared Action File	Free CPAA Apps
.CPF	Cognos Project File	Free CPF Apps
.CPK	DTM Test Log File	Free CPK Apps
.CPMZ	Miradi/ConPro Project File	Free CPMZ Apps
.CPTL	Adobe Captivate Project Template File	Free CPTL Apps
.CPTX	Adobe Captivate Project File	Free CPTX Apps
.CRAM	Compressed Alignment File	Free CRAM Apps
.CREV	Adobe Captivate Commentable SWF File	Free CREV Apps
.CRTX	Office 2007 Chart Template File	Free CRTX Apps
.CRY	CryENGINE Map File	Free CRY Apps
.CS	ColorSchemer Studio Color Scheme	Free CS Apps
.CSA	PNA Code Calset File	Free CSA Apps
.CSL	CineStyle Color Lookup File	Free CSL Apps
.CSUTIL	ColorSync Utility Folder	Free CSUTIL Apps
.CSV	Comma Separated Values File	Free CSV Apps
.CTB	Cherrytree SQLite Document	Free CTB Apps
.CTD	Cherrytree XML Document	Free CTD Apps
.CTF	WhereIsIt Catalog File	Free CTF Apps
.CTL	StepMania SMZIP Package Description File	Free CTL Apps
.CTM	CrazyTalk Model File	Free CTM Apps
.CTP	CrazyTalk Project File	Free CTP Apps
.CTPROJECT	CrazyTalk Animator Project File	Free CTPROJECT Apps
.CTT	Messenger Contact List	Free CTT Apps
.CTV	Citavi Project	Free CTV Apps
.CTV3	Citavi 3 Project File	Free CTV3 Apps
.CUB	Analysis Services Cube File	Free CUB Apps
.CUB	Gaussian Cube File	Free CUB Apps
.CUBE	Gaussian Cube File	Free CUBE Apps
.CURSORFX	CursorFX Theme File	Free CURSORFX Apps
.CURXPTHEME	CursorXP Theme File	Free CURXPTHEME Apps
.CV	CodeView Data File	Free CV Apps
.CVA	Canvas Sequence Set	Free CVA Apps
.CVD	ClamAV Virus Definitions File	Free CVD Apps
.CVD	Bitdefender Virus Definition File	Free CVD Apps
.CVN	CineVision Encoding Session	Free CVN Apps
.CWA	Continuous Wave Accelerometer Data File	Free CWA Apps
.CWK	ClarisWorks Document	Free CWK Apps
.CWW	Crossword Weaver Puzzle File	Free CWW Apps
.CWZ	Circuit Wizard File	Free CWZ Apps
.CX5	Clone Manager XML File	Free CX5 Apps
.CXA	FMAT Listmode File	Free CXA Apps
.CXD	SimplePCI Data Document	Free CXD Apps
.CXF	Chemical Exchange Format File	Free CXF Apps
.CXF	Cuttlefish Extended Format File	Free CXF Apps
.CXR	FMAT Plate Results File	Free CXR Apps
.CXT	Director Protected Cast File	Free CXT Apps
.CYO	Clustify Output File	Free CYO Apps
.CYS	Clustify Summary File	Free CYS Apps
.CYS	Cytoscape Session File	Free CYS Apps
.CZI	Carl Zeiss Image Data File	Free CZI Apps
.CZP	ClozePro Archive	Free CZP Apps
.D3MD	DART Metadata File	Free D3MD Apps
.DA2	DeepAnalysis Save File	Free DA2 Apps
.DAF	Digital Anchor File	Free DAF Apps
.DAL	DVD-lab Project File	Free DAL Apps
.DAM	DeltaMaster Analysis Model	Free DAM Apps
.DAP	Diet Analysis Profile	Free DAP Apps
.DAS	DeltaMaster Analysis Session	Free DAS Apps
.DAT	Piriform Key File	Free DAT Apps
.DAT	Porteus Save Container File	Free DAT Apps
.DAT	Nonimmigrant Visa Application Data File	Free DAT Apps
.DATA	Analysis Studio Offline Data File	Free DATA Apps
.DB-	Norton Nprotect Database File	Free DB- Apps
.DB.JOU	Patran Journal File	Free DB.JOU Apps
.DB	QQ Account Database File	Free DB Apps
.DB	Skype Chat History File	Free DB Apps
.DBD	DemoShield Project	Free DBD Apps
.DBF	FoxPro Table	Free DBF Apps
.DBGSYM	Debug Symbols File	Free DBGSYM Apps
.DCF	Document Computation Format	Free DCF Apps
.DCL	DumpSec Report File	Free DCL Apps
.DCM	DiskCatalogMaker Catalog File	Free DCM Apps
.DCMD	DiskCatalogMaker Thumbnail-Enabled Catalog	Free DCMD Apps
.DCMF	DiskCatalogMaker Catalog	Free DCMF Apps
.DCPF	Disc Copier Project File	Free DCPF Apps
.DCPR	Adobe DNG Camera Profile Recipe File	Free DCPR Apps
.DCT	AutoCAD Dictionary File	Free DCT Apps
.DDB	Digidesign Database	Free DDB Apps
.DDC	DivX Descriptor File	Free DDC Apps
.DDCX	DivX Descriptor 2 File	Free DDCX Apps
.DDE	Lingvo Dictionary Error Log File	Free DDE Apps
.DDT	Diagram Designer Template	Free DDT Apps
.DEF	IOBit Malware Fighter Definitions File	Free DEF Apps
.DEOS	Driver Easy Offline Scan File	Free DEOS Apps
.DEPROJ	Disketch Project File	Free DEPROJ Apps
.DES	QuickBooks Forms Template	Free DES Apps
.DET	Sage ACT! 5 Email Message	Free DET Apps
.DEVELVE	Develve Data File	Free DEVELVE Apps
.DEVICEINFO	Device Record	Free DEVICEINFO Apps
.DEX	Disketch Project File	Free DEX Apps
.DEX	DEXIS Digital X-ray File	Free DEX Apps
.DFM	Midas ViewPoint Display Form	Free DFM Apps
.DFPROJ	DVD Flick Project	Free DFPROJ Apps
.DGS	3D Screen Creator Scene File	Free DGS Apps
.DHCD	DHCD Computing Application Data File	Free DHCD Apps
.DHT	GAUSS Data Set Header File	Free DHT Apps
.DIA	Do It Again Task File	Free DIA Apps
.DICT	Dictionary File	Free DICT Apps
.DIF	Data Interchange Format	Free DIF Apps
.DIG	Digilink Data File	Free DIG Apps
.DII	Summation Batch Load File	Free DII Apps
.DIP	DipTrace Printed Circuit Board File	Free DIP Apps
.DITA	DITA Document	Free DITA Apps
.DITAMAP	DITA Topic Map File	Free DITAMAP Apps
.DITAVAL	DITA Conditions File	Free DITAVAL Apps
.DJM	Dynojet Map File	Free DJM Apps
.DKT	DiGiTIAL THUNDER Drum Kit File	Free DKT Apps
.DL	Dynamic Library	Free DL Apps
.DLC	DIALux Light Control File	Free DLC Apps
.DLT	DELTA Binary Dataset File	Free DLT Apps
.DLTEMP	UC Browser Temporary Download File	Free DLTEMP Apps
.DM2	Toad Data Modeler 2 File	Free DM2 Apps
.DMC	Datamartist Data Canvas File	Free DMC Apps
.DMM	iMindQ Mind Map File	Free DMM Apps
.DMMX	iMindQ XML Map Bundle	Free DMMX Apps
.DMO	Derive Demo	Free DMO Apps
.DMO	Movienizer Database File	Free DMO Apps
.DMPR	Direct Mail Project File	Free DMPR Apps
.DMR	BrainVoyager Diffusion Weighted Project File	Free DMR Apps
.DMSK	DivX Temporary Video Data File	Free DMSK Apps
.DMSP	PhotoSuite Project File	Free DMSP Apps
.DNA	SnapGene DNA File	Free DNA Apps
.DNA	GenePool DNA File	Free DNA Apps
.DNC	Dance Database File	Free DNC Apps
.DNG	Virtual Dongle Image	Free DNG Apps
.DOCKZIP	ObjectDock File	Free DOCKZIP Apps
.DOT	Graphviz Graph File	Free DOT Apps
.DPB	DVD Profiler Backup File	Free DPB Apps
.DPN	Depiction Data File	Free DPN Apps
.DPS	Kingsoft Presentation File	Free DPS Apps
.DPT	Kingsoft Presentation Template	Free DPT Apps
.DPX	VASCO DIGIPASS File	Free DPX Apps
.DR	My Dark Diary Backup File	Free DR Apps
.DRF	Dynojet Run File	Free DRF Apps
.DRL	Gerber Drill Rack File	Free DRL Apps
.DRSCAN	Data Rescue Scans File	Free DRSCAN Apps
.DRZ	PyDrizzle Data File	Free DRZ Apps
.DSB	Wondershare DVD Slideshow Builder Project	Free DSB Apps
.DSB	Orchida Embroidery File	Free DSB Apps
.DSC	Debian Source Control File	Free DSC Apps
.DSC	Celestia Deep Space Catalog File	Free DSC Apps
.DSD	Diet Studio Data File	Free DSD Apps
.DSET	Kratos Dataset File	Free DSET Apps
.DSF	X-Plane Distribution Scenery Format	Free DSF Apps
.DSL	Lingvo Dictionary File	Free DSL Apps
.DSX	Diet Studio XML File	Free DSX Apps
.DSY	Directory Synchronizer Project File	Free DSY Apps
.DSZ	Orchida (OES) Embroidery File	Free DSZ Apps
.DT	Drum Station Machine State File	Free DT Apps
.DTA	Chain Engineering Database	Free DTA Apps
.DTD	Design Tools Draw File	Free DTD Apps
.DTP	dotTrace Profile File	Free DTP Apps
.DTR	DATroniC Data Recording	Free DTR Apps
.DUPEGURU	dupeGuru Duplicate File List	Free DUPEGURU Apps
.DVB	AutoCAD VBA Project File	Free DVB Apps
.DVC	Dragon Voice Command File	Free DVC Apps
.DVDPROJ	iDVD Project File	Free DVDPROJ Apps
.DVDS	DVDStyler Project File	Free DVDS Apps
.DVO	Cook'n Cookbook File	Free DVO Apps
.DWI	Dance With Intensity Song File	Free DWI Apps
.DWP	DarkWave Studio Project File	Free DWP Apps
.DWS	Adobe Dreamweaver Site Cache File	Free DWS Apps
.DWZ	DVD MovieFactory Project File	Free DWZ Apps
.E2P	PonyProg Device File	Free E2P Apps
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.LIF	LEGO Digital Designer Assets File	Free LIF Apps
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.LIFE	Light Notebook File	Free LIFE Apps
.LIN	X-Plane Painted Line File	Free LIN Apps
.LIST	APT List File	Free LIST Apps
.LIVEREG	Symantec Antivirus Session File	Free LIVEREG Apps
.LIVEUPDATE	Symantec LiveUpdate File	Free LIVEUPDATE Apps
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.LOG	AntiVir Report Log File	Free LOG Apps
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.LPMD	LPMD Molecular Data File	Free LPMD Apps
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.LQM	LG QuickMemo Note	Free LQM Apps
.LRCAT	Adobe Lightroom Catalog File	Free LRCAT Apps
.LRDATA	Adobe Lightroom Data File	Free LRDATA Apps
.LRLIB	Adobe Lightroom CC Library File	Free LRLIB Apps
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.LRM	Encarta Class Server Learning Resource File	Free LRM Apps
.LRTOOLKIT	Adobe Lightroom Toolkit	Free LRTOOLKIT Apps
.LS3	Band-in-a-Box Third-Party Styles File	Free LS3 Apps
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.LSD	Lingvo Dictionary File	Free LSD Apps
.LSF	Logos Library System File	Free LSF Apps
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.LSR	LANsurveyor Report	Free LSR Apps
.LST	LightScribe Label Template	Free LST Apps
.LSU	LANsurveyor Map	Free LSU Apps
.LUCIDCOLORSET	Lucid Color Set File	Free LUCIDCOLORSET Apps
.LUD	Lingvo User Dictionary File	Free LUD Apps
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.LUTX	RadioRA 2 Essentials Project Database	Free LUTX Apps
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.LWD	Lightworks Data File	Free LWD Apps
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.M	Mathematica Input File	Free M Apps
.M12	Schiller medilog ECG Raw Data File	Free M12 Apps
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.MACBIN	Macbinary Encoded File	Free MACBIN Apps
.MAF	Mutation Annotation Format File	Free MAF Apps
.MAG	Magic Circuit Layout File	Free MAG Apps
.MAGIC	SlideMagic Presentation File	Free MAGIC Apps
.MAI	Microsoft Mail File	Free MAI Apps
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.MAPSDATA	iOS Maps Data File	Free MAPSDATA Apps
.MAS	MEGA Alignment Sequence File	Free MAS Apps
.MAT	MATLAB MAT-File	Free MAT Apps
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.MBA	MailNavigator Mail Box Archive	Free MBA Apps
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.MBD	Multimedia Builder Project File	Free MBD Apps
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.MBSA	Microsoft Baseline Security Analyzer File	Free MBSA Apps
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.MC1	MedCalc Data File	Free MC1 Apps
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.MCDX	Mathcad Prime Document	Free MCDX Apps
.MCHELP	MadCap DotNet Help File	Free MCHELP Apps
.MCIF	MacroMolecular Crystallographic Information File	Free MCIF Apps
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.MCP	Megacubo Package	Free MCP Apps
.MCT	Windows Live Messenger Data File	Free MCT Apps
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.MDM	HLM Multivariate Data Matrix File	Free MDM Apps
.MDQ	Transformation Extender Database Definition File	Free MDQ Apps
.MDSX	MEGA Saved Session	Free MDSX Apps
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.MDX	Multiple Index File	Free MDX Apps
.MDZ	Access Wizard Template	Free MDZ Apps
.MEG	MEGA Data File	Free MEG Apps
.MEGA	Megacubo XML Metafile	Free MEGA Apps
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.MEM	Mnemosyne Card Collection	Free MEM Apps
.MENC	Windows Mobile Encrypted File	Free MENC Apps
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.MET	eMule Resource File	Free MET Apps
.MEX	Macro Express File	Free MEX Apps
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.MFA	MobileFrame App File	Free MFA Apps
.MFE	MobileFrame Enterprise Data File	Free MFE Apps
.MFL	ModFit LT Analysis Report File	Free MFL Apps
.MFL	Mozilla FastLoad File	Free MFL Apps
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.MFP	MobileFrame Package	Free MFP Apps
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.MFT	Kaspersky File Table	Free MFT Apps
.MFU	MobileFrame Update File	Free MFU Apps
.MFV	MobileFrame Device Pack File	Free MFV Apps
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.MGOURMET	MacGourmet Deluxe Document	Free MGOURMET Apps
.MGOURMET3	MacGourmet Deluxe 3 Document	Free MGOURMET3 Apps
.MGOURMET4	MacGourmet Deluxe 4 Document	Free MGOURMET4 Apps
.MGSPOT	MacGourmet Spotlight MetaData File	Free MGSPOT Apps
.MHP	Maths Helper Plus File	Free MHP Apps
.MIGRATEDAPLIBRARY	Migrated Aperture Library	Free MIGRATEDAPLIBRARY Apps
.MIGRATEDPHOTOLIBRARY	Migrated Photo Library	Free MIGRATEDPHOTOLIBRARY Apps
.MINDNODE	MindNode Document	Free MINDNODE Apps
.MISSION	MissionMaker Project File	Free MISSION Apps
.MIT	MineEdit Inventory Template File	Free MIT Apps
.MJK	Question File	Free MJK Apps
.MK4	Schiller medilog ECG Raw Data File	Free MK4 Apps
.MKS	Matroska Elementary Stream File	Free MKS Apps
.MLB	MyLabel Designer Deluxe Project File	Free MLB Apps
.MLM	MolMeccano File	Free MLM Apps
.MLS	Milestones Simplicity File	Free MLS Apps
.MM	Mind Map File	Free MM Apps
.MM6	Money Manager 6 File	Free MM6 Apps
.MMA	Master Album Maker Photo Album File	Free MMA Apps
.MMAP	MindManager Map File	Free MMAP Apps
.MMC	Microsoft Media Catalog	Free MMC Apps
.MMCOLLECTION	Mail Manager Collection File	Free MMCOLLECTION Apps
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.MML	Microsoft Clip Organizer File	Free MML Apps
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.MMMP	MindManager Map Part File	Free MMMP Apps
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.MMP	MindManager Mind Map	Free MMP Apps
.MMS	Transformation Extender Map Source File	Free MMS Apps
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.MMW	Microsoft Clip Organizer Media Catalog File	Free MMW Apps
.MNC	My Notes Center Notebook	Free MNC Apps
.MNG	Yamaha PSR Disk Manager File	Free MNG Apps
.MNK	My Notes Keeper Notebook	Free MNK Apps
.MNO	Macromedia Design Note	Free MNO Apps
.MNY	Microsoft Money File	Free MNY Apps
.MOD	AMPL Model File	Free MOD Apps
.MOHO	Moho Animation Project	Free MOHO Apps
.MOHOPROJ	Moho Document Data File	Free MOHOPROJ Apps
.MOL	MDL Molfile	Free MOL Apps
.MOL2	SYBYL MOL2 File	Free MOL2 Apps
.MONEY	Money Data File	Free MONEY Apps
.MONEYWELL	MoneyWell Account File	Free MONEYWELL Apps
.MOSAIC	MacOSaiX Mosaic File	Free MOSAIC Apps
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.MPI	InstallJammer Project File	Free MPI Apps
.MPJ	Minitab Project File	Free MPJ Apps
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.MPKT	MOPEKS Trial File	Free MPKT Apps
.MPP	Microsoft Project File	Free MPP Apps
.MPP	MobileFrame Project Publisher File	Free MPP Apps
.MPPZ	MagicPlot Project File	Free MPPZ Apps
.MPQE	Blizzard Encrypted Mo'PaQ File	Free MPQE Apps
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.MPS	Mathematical Programming System File	Free MPS Apps
.MPX	Microsoft Project Exchange File	Free MPX Apps
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.MPZIP	Multisim Pack File	Free MPZIP Apps
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.MRY	Tomboy Industrees Memory File	Free MRY Apps
.MS10	Multisim 10 Circuit Design File	Free MS10 Apps
.MS8	Multisim 8 Circuit Design File	Free MS8 Apps
.MSB	Oracle Binary Message File	Free MSB Apps
.MSC	MuseScore Composition File	Free MSC Apps
.MSCT	MOPEKS Script File	Free MSCT Apps
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.MSP	ClarisWorks Dictionary File	Free MSP Apps
.MSS	MyScreenSaver Builder File	Free MSS Apps
.MTE	Mp3tag Export Configuration File	Free MTE Apps
.MTF	Mortality Table File	Free MTF Apps
.MTFF	MadgeTech Data Logger Report	Free MTFF Apps
.MTH	Derive Math File	Free MTH Apps
.MTM	Macrofocus TreeMap File	Free MTM Apps
.MTQ	Mustaq Data File	Free MTQ Apps
.MTS	MEGA Tree Session File	Free MTS Apps
.MTT	MetadataTouch Template	Free MTT Apps
.MTW	Minitab Worksheet File	Free MTW Apps
.MTXT	MOPEKS Text File	Free MTXT Apps
.MUF	Alpha Five License File	Free MUF Apps
.MUM	MATLAB Unit Operation Model File	Free MUM Apps
.MUP	Music Publisher Score	Free MUP Apps
.MVM	Photostory Deluxe Slideshow	Free MVM Apps
.MW	Maple Worksheet	Free MW Apps
.MWF	MapGuide Author Map Window File	Free MWF Apps
.MWS	Maple Classic Worksheet	Free MWS Apps
.MWX	MicroWorlds EX File	Free MWX Apps
.MX	Mathematica Serialized Package File	Free MX Apps
.MXAD	Mandelbrot Explorer All Data File	Free MXAD Apps
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.MXDIC	Maxthon Dictionary File	Free MXDIC Apps
.MXG	Miinoto Exchangeable Group File	Free MXG Apps
.MXI	Adobe Extension Information File	Free MXI Apps
.MXLIFF	Memsource XLIFF Localization File	Free MXLIFF Apps
.MYD	Everfine Photomoetric Results File	Free MYD Apps
.MYI	MySQL MyISAM Index File	Free MYI Apps
.MYO	AccountEdge Company File	Free MYO Apps
.NAM	Aqua3D Network File	Free NAM Apps
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.NAMES	Data Set Description File	Free NAMES Apps
.NAP	McAfee ePO Network Associates Package	Free NAP Apps
.NAS	Nastran Input File	Free NAS Apps
.NBE	Nessus Report File	Free NBE Apps
.NBK	SMART Notebook File	Free NBK Apps
.NBP	Mathematica Player Notebook File	Free NBP Apps
.NC	NetCDF File	Free NC Apps
.NCORX	Adobe Encore Project	Free NCORX Apps
.NCT	Now Contact File	Free NCT Apps
.NDB	ClamAV Extended Signature File	Free NDB Apps
.NDIF	Nokia Data File	Free NDIF Apps
.NDK	Lotus Notes Design Elements File	Free NDK Apps
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.NDX	Neat 5 Archive File	Free NDX Apps
.NDX	dBASE Index File	Free NDX Apps
.NESSUS	Nessus Network Security Scanner File	Free NESSUS Apps
.NET	netViz Project File	Free NET Apps
.NETA	Netica Binary File	Free NETA Apps
.NETSPD	NetSpot Survey Project File	Free NETSPD Apps
.NETSPM	NetSpot Map File	Free NETSPM Apps
.NFI	Netflix Information File	Free NFI Apps
.NFL	Nokia Flash Lite Package	Free NFL Apps
.NFO	Folio Views Infobase File	Free NFO Apps
.NFS	Netflix Subtitle File	Free NFS Apps
.NITF	National Imagery Transmission Format File	Free NITF Apps
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.NLOGO	NetLogo Model File	Free NLOGO Apps
.NLOGO3D	NetLogo 3D Model File	Free NLOGO3D Apps
.NMA	NMEA Data File	Free NMA Apps
.NMEA	NMEA Data File	Free NMEA Apps
.NMIND	NovaMind Mind Map File	Free NMIND Apps
.NMM	Samsung Memo File	Free NMM Apps
.NMP	NewsMaker Project File	Free NMP Apps
.NNI	ANNI Neural Network Investing File	Free NNI Apps
.NNP	ANNI Neural Network Portfolio File	Free NNP Apps
.NOT	Notation File	Free NOT Apps
.NOT	Finale Note File	Free NOT Apps
.NOTEBOOK	SMART Notebook File	Free NOTEBOOK Apps
.NP	Portfolio NetPublish File	Free NP Apps
.NPL	Nokia Playlist File	Free NPL Apps
.NPR	Nuendo Project File	Free NPR Apps
.NPT	Portfolio NetPublish Template	Free NPT Apps
.NPY	Python NumPy Array File	Free NPY Apps
.NRB	Nero CD-ROM Boot Compilation	Free NRB Apps
.NRC	Nero Disc Compilation File	Free NRC Apps
.NRD	Nero DVD-Video Compilation File	Free NRD Apps
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.NRL	Autonomy Interwoven Link File	Free NRL Apps
.NRM	Nero Mixed Mode CD Compilation	Free NRM Apps
.NRT	Neat Contact File	Free NRT Apps
.NRU	Nero UDF CD-ROM Compilation	Free NRU Apps
.NRX	Neat Receipt Folder File	Free NRX Apps
.NSQ	NScheduler Data File	Free NSQ Apps
.NSR	Nessus Security Report File	Free NSR Apps
.NST	Outlook Connector for Notes File	Free NST Apps
.NT	theWord New Testament Text Module	Free NT Apps
.NTF	Lotus Note Template	Free NTF Apps
.NTX	theWord Encrypted New Testament Text Module	Free NTX Apps
.NTX	Clipper Index File	Free NTX Apps
.NUPKG	NetUpdate Package	Free NUPKG Apps
.NVDL	NVDL Script	Free NVDL Apps
.NVL	UniChem Results File	Free NVL Apps
.NVM	PlayStation 2 BIOS Configuration File	Free NVM Apps
.NVRAM	VMware NVRAM File	Free NVRAM Apps
.NWCAB	Neat Cabinet File	Free NWCAB Apps
.NWCP	Nisus Clipboard Document	Free NWCP Apps
.NWELICENSE	Nisus License	Free NWELICENSE Apps
.NWO	NWChem Output File	Free NWO Apps
.NWP	Navisworks Presenter Material Palette File	Free NWP Apps
.NWS	Windows Live Mail Newsgroup File	Free NWS Apps
.OAB	Offline Address Book	Free OAB Apps
.OBB	Android Opaque Binary Blob File	Free OBB Apps
.OBD	Office Binder Document	Free OBD Apps
.OBJ	Relocatable Object Code	Free OBJ Apps
.OCC	Oceanic DataPool File	Free OCC Apps
.OCIMF	OCIMF HVPQ File	Free OCIMF Apps
.OD	Mascopt Graph Request File	Free OD Apps
.ODC	OpenDocument Chart File	Free ODC Apps
.ODF	Open Document File	Free ODF Apps
.ODP	OpenDocument Presentation	Free ODP Apps
.ODT	OOMMF Data Table File	Free ODT Apps
.ODX	BizTalk Server Orchestration File	Free ODX Apps
.OEACCOUNT	Windows Mail Account File	Free OEACCOUNT Apps
.OEM	OEMEdit Save File	Free OEM Apps
.OFC	Open Financial Connectivity File	Free OFC Apps
.OFM	Melco Embroidery File	Free OFM Apps
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.OFT	Outlook File Template	Free OFT Apps
.OFX	Open Financial Exchange File	Free OFX Apps
.OGG	Origin Graph File	Free OGG Apps
.OGGU	Origin Unicode Graph File	Free OGGU Apps
.OGM	Origin Matrix File	Free OGM Apps
.OGMU	Origin Unicode Matrix File	Free OGMU Apps
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.OGS	Origin LabTalk Script File	Free OGS Apps
.OLK	Outlook Address Book File	Free OLK Apps
.OLK14CATEGORY	Outlook Category File	Free OLK14CATEGORY Apps
.OLK14CONTACT	Outlook Contact File	Free OLK14CONTACT Apps
.OLK14EVENT	Outlook Calendar Event File	Free OLK14EVENT Apps
.OLK14GROUP	Outlook Group File	Free OLK14GROUP Apps
.OLK14MAILACCOUNT	Outlook Mail Account File	Free OLK14MAILACCOUNT Apps
.OLK14MESSAGE	Outlook Message File	Free OLK14MESSAGE Apps
.OLK14MSGATTACH	Outlook 2011 Email Message Attachment File	Free OLK14MSGATTACH Apps
.OLK14MSGSOURCE	Outlook Email Message Data File	Free OLK14MSGSOURCE Apps
.OLK14NOTE	Outlook Note File	Free OLK14NOTE Apps
.OLK14SIGNATURE	Outlook Signature File	Free OLK14SIGNATURE Apps
.OLK14TASK	Outlook Task File	Free OLK14TASK Apps
.OLK15MSGATTACH	Outlook 2016 Email Message Attachment File	Free OLK15MSGATTACH Apps
.OLL	TrialDirector Object Load List	Free OLL Apps
.OLM	Mac Outlook Database File	Free OLM Apps
.OLT	Orbit Downloads List	Free OLT Apps
.OMCS	Office Manager Access File	Free OMCS Apps
.OMP	Office Manager Document Archive	Free OMP Apps
.OND	Lotus Notes Encapsulated Memo File	Free OND Apps
.ONE	OneNote Document	Free ONE Apps
.ONT	theWord Bible Text Module	Free ONT Apps
.ONTX	theWord Encrypted Bible Text Module	Free ONTX Apps
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.OP2	Nastran Output File	Free OP2 Apps
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.OPAL	Microsoft Office User Settings File	Free OPAL Apps
.OPAX	Microsoft Office User Settings File	Free OPAX Apps
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.OPJU	Origin Unicode Project	Free OPJU Apps
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.OPX	OrgPlus Org Chart	Free OPX Apps
.OR2	Lotus Organizer 2 File	Free OR2 Apps
.OR3	IBM Lotus Organizer 97 File	Free OR3 Apps
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.OR5	Lotus Organizer 5 File	Free OR5 Apps
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.ORG	Lotus Organizer File	Free ORG Apps
.OSZ	OpenLP Service File	Free OSZ Apps
.OT	theWord Old Testament Text Module	Free OT Apps
.OTF	OpenTuft Tufting Design File	Free OTF Apps
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.OTLN	Opal Outline File	Free OTLN Apps
.OTP	OpenDocument Presentation Template	Free OTP Apps
.OTX	theWord Encrypted Old Testament Text Module	Free OTX Apps
.OUT	Output File	Free OUT Apps
.OVA	Octava Musical Score	Free OVA Apps
.OVA	Open Virtual Appliance	Free OVA Apps
.OVF	Open Virtualization File	Free OVF Apps
.OVOLOG	ooVoo Log File	Free OVOLOG Apps
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.P3	Primavera P3 Project File	Free P3 Apps
.P7X	Packed Digital Signature File	Free P7X Apps
.PAB	Personal Address Book	Free PAB Apps
.PACK	CustoPack Tools Theme Pack	Free PACK Apps
.PAF	Personal Ancestral File	Free PAF Apps
.PAGE	S Note Page File	Free PAGE Apps
.PART00000	WinOptimizer Split Archive Part 1	Free PART00000 Apps
.PASSWORDWALLET4	PasswordWallet 4 Data File	Free PASSWORDWALLET4 Apps
.PAT	Ketron Sound Pattern File	Free PAT Apps
.PATRAN.HRD	Patran Hardcopy File	Free PATRAN.HRD Apps
.PAW	Personal Ancestry Writer II File	Free PAW Apps
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.PBD	ProBID+ Data File	Free PBD Apps
.PBIT	Power BI Desktop Template	Free PBIT Apps
.PBIX	Power BI Desktop File	Free PBIX Apps
.PBK	Dial-Up Phone Book File	Free PBK Apps
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.PC	Personal Composer File	Free PC Apps
.PCAP	Packet Capture Data	Free PCAP Apps
.PCAPNG	Pcap-NG Packet Capture File	Free PCAPNG Apps
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.PCC	Photocomposition Code File	Free PCC Apps
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.PCK	Oracle Package Specification and Body File	Free PCK Apps
.PCR	PCMark Vantage Benchmark File	Free PCR Apps
.PCT	Pure Compound Text File	Free PCT Apps
.PD4	Windows Live Photo Gallery Information File	Free PD4 Apps
.PD4	Clone Manager Primer File	Free PD4 Apps
.PD5	Windows Live Photo Gallery Information File	Free PD5 Apps
.PDA	SoftMax Pro Microplate Data Analysis File	Free PDA Apps
.PDAS	PDAStore Data Store File	Free PDAS Apps
.PDB	Tanida Demo Builder File	Free PDB Apps
.PDB	Protein Data Bank File	Free PDB Apps
.PDD	Medtronic Programmer Data File	Free PDD Apps
.PDFIG	PDF Index Generator Project File	Free PDFIG Apps
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.PDPD	Product Details Page DataObject File	Free PDPD Apps
.PDPL	Plaintext Data Processing Language File	Free PDPL Apps
.PDPLX	Plaintext Data Processing Language Extensible File	Free PDPLX Apps
.PDS	Planetary Data System File	Free PDS Apps
.PDW	pDRAW32 DNA File	Free PDW Apps
.PDX	Product Data eXchange File	Free PDX Apps
.PDX	Adobe Acrobat Index File	Free PDX Apps
.PEB	ProEST+ Buildings File	Free PEB Apps
.PEC	Brother Embroidery File	Free PEC Apps
.PEP	TurboProject Project File	Free PEP Apps
.PES	PhysicsEditor Sheet File	Free PES Apps
.PEX	Merak Peep Data File	Free PEX Apps
.PEZ	Prezi Desktop Presentation	Free PEZ Apps
.PF	Windows Prefetcher File	Free PF Apps
.PFC	AOL Personal File Cabinet	Free PFC Apps
.PFL	Family Lawyer Document	Free PFL Apps
.PGDATA	Penguin George Data File	Free PGDATA Apps
.PGPF	Password Generator Password File	Free PGPF Apps
.PHB	Motorola Phone Book File	Free PHB Apps
.PHD	PhotoDirector Project File	Free PHD Apps
.PHD	Portable Heap Dump File	Free PHD Apps
.PHM	Pro Home Manager Data File	Free PHM Apps
.PHOTOLIBRARY	iPhoto Photo Library	Free PHOTOLIBRARY Apps
.PHOTOSLIBRARY	Photos Library	Free PHOTOSLIBRARY Apps
.PHR	RoboHelp Phrase List	Free PHR Apps
.PI	Pi Calculation Data File	Free PI Apps
.PIDS	Snap-on Scan Data File	Free PIDS Apps
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.PJ2	xPlan Document	Free PJ2 Apps
.PJM	xPlan Model	Free PJM Apps
.PJT	Didger Project File	Free PJT Apps
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.PKB	Oracle Package Body File	Free PKB Apps
.PKH	Oracle Package File	Free PKH Apps
.PKS	Oracle Package Spec File	Free PKS Apps
.PKT	Packet Tracer Network Simulation Model	Free PKT Apps
.PLAN	Calligra Plan Document	Free PLAN Apps
.PLANNER	Gnome Planner File	Free PLANNER Apps
.PLN	Spaceman Planogram File	Free PLN Apps
.PLS	PL/SQL Stored Procedure	Free PLS Apps
.PLS	MYOB Accounting Data File	Free PLS Apps
.PLT	Tecplot Binary Data File	Free PLT Apps
.PLW	PicoLog Data File	Free PLW Apps
.PMATRIX	Priority Matrix Project File	Free PMATRIX Apps
.PML	Process Monitor Log File	Free PML Apps
.PMM	MikuMikuDance PolygonMovieMaker File	Free PMM Apps
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.PMO	Broderbund Print Meta Object File	Free PMO Apps
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.PMR	Performance Monitor Report	Free PMR Apps
.PNPROJ	Programmer's Notepad Project File	Free PNPROJ Apps
.PNPT	Programmer's Notepad Project Template	Free PNPT Apps
.PNS	Popnoggin Subject File	Free PNS Apps
.PNT	Popnoggin Theme File	Free PNT Apps
.POD	OpenProj Project File	Free POD Apps
.POI	Magellan Maestro Point of Interest File	Free POI Apps
.POPSHAPE	PopChar Character Shape File	Free POPSHAPE Apps
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.T05	TaxCut 2005 Tax Return	Free T05 Apps
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.TAX09	TurboTax 2009 Tax Return File	Free TAX09 Apps
.TAX10	TurboTax 2010 Tax Return File	Free TAX10 Apps
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.TAX15	TurboTax 2015 Tax Return File	Free TAX15 Apps
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.TAX2008	TurboTax 2008 Tax Return	Free TAX2008 Apps
.TAX2009	TurboTax 2009 Tax Return	Free TAX2009 Apps
.TAX2010	TurboTax 2010 Tax Return	Free TAX2010 Apps
.TAX2011	TurboTax 2011 Tax Return	Free TAX2011 Apps
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.TAX2017	TurboTax 2017 Tax Return	Free TAX2017 Apps
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.TAX2019	TurboTax 2019 Tax Return	Free TAX2019 Apps
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.TBD	Visual Studio Toolbox Data File	Free TBD Apps
.TBK	ToolBook File	Free TBK Apps
.TBL	StarCraft Information Table	Free TBL Apps
.TBX	ArcGIS for Desktop Toolbox File	Free TBX Apps
.TBX	TermBase eXchange File	Free TBX Apps
.TC	Tellico Collection File	Free TC Apps
.TCC	TimeCalc Classic Data File	Free TCC Apps
.TCLOGS	TestComplete Log Configuration File	Free TCLOGS Apps
.TCNET	TestComplete Configuration Reference File	Free TCNET Apps
.TCX	Training Center XML File	Free TCX Apps
.TDA	Palm To-Do File	Free TDA Apps
.TDA	Java Application Thread Dump	Free TDA Apps
.TDB	Android Thumbnail Cache	Free TDB Apps
.TDE	Tableau Data Extract File	Free TDE Apps
.TDL	Tab Delineated Format File	Free TDL Apps
.TDL	ToDoList Tasklist File	Free TDL Apps
.TDM	LabVIEW Binary Measurement File	Free TDM Apps
.TDMS	Technical Data Management Streaming File	Free TDMS Apps
.TDT	FirstBreak Concrete Test File	Free TDT Apps
.TDT	THOR Data Tree File	Free TDT Apps
.TE3	WinTrack Object File	Free TE3 Apps
.TED	TouchMagix Editable Document Template	Free TED Apps
.TEF	TablEdit Tablature	Free TEF Apps
.TER	Terragen Terrain File	Free TER Apps
.TERRN	Rigs of Rods Terrain File	Free TERRN Apps
.TERRN2	Rigs of Rods Terrain 2 File	Free TERRN2 Apps
.TET	Textease CT Template	Free TET Apps
.TEXTEXPANDER	TextExpander Settings File	Free TEXTEXPANDER Apps
.TEXTEXPANDERSETTINGS	TextExpander Settings File	Free TEXTEXPANDERSETTINGS Apps
.TFA	TreeSoft CashFlow Analysis Data File	Free TFA Apps
.TFD	Tape Format Requirements Document	Free TFD Apps
.TGC	Terragen Node Clip File	Free TGC Apps
.TGD	Terragen Project File	Free TGD Apps
.TGF	Trivial Graph Format File	Free TGF Apps
.THUMBDATA3-1763508120	Thumbnail Index File	Free THUMBDATA3-1763508120 Apps
.THUMBDATA3-1967290299	Thumbnail Index File	Free THUMBDATA3-1967290299 Apps
.THUMBDATA4-1763508120	Thumbnail Index File	Free THUMBDATA4-1763508120 Apps
.THUMBDATA4-1967290299	Thumbnail Index File	Free THUMBDATA4-1967290299 Apps
.TIE	CrossTie Installer File	Free TIE Apps
.TIME	LIGHT File	Free TIME Apps
.TIMELINE	Timeline Data File	Free TIMELINE Apps
.TJP	TaskJuggler Project File	Free TJP Apps
.TKFL	TKLinks Saver Favorite Links File	Free TKFL Apps
.TL5	Timeliner 5 File	Free TL5 Apps
.TLINE	TimelineOnline Data File	Free TLINE Apps
.TLP	Tulip Software Graph Format File	Free TLP Apps
.TLX	Standard Dictionary File	Free TLX Apps
.TMR	Apimac Timer Document	Free TMR Apps
.TMW	Translation Memory Data File	Free TMW Apps
.TMX	Translation Memory Exchange File	Free TMX Apps
.TMZIP	Theme Manager Zip File	Free TMZIP Apps
.TOL	AOL Tool File	Free TOL Apps
.TOP	Gromacs Topology File	Free TOP Apps
.TOPC	TopicCrunch Project File	Free TOPC Apps
.TOTALSBACKUP	Totals Database Backup File	Free TOTALSBACKUP Apps
.TOTALSDB	Totals Database File	Free TOTALSDB Apps
.TOTALSSYNCDB	Totals Synchronized Database File	Free TOTALSSYNCDB Apps
.TPB	GROMACS Binary Input File	Free TPB Apps
.TPD	TreePad 7 Database File	Free TPD Apps
.TPF	Transit NXT Pack Translation File	Free TPF Apps
.TPS	Multi Channel Measurement File	Free TPS Apps
.TQS	Trivia Quiz Shell Program File	Free TQS Apps
.TRA	WinTrack Railroad Track File	Free TRA Apps
.TRAY	Corel CONNECT Tray File	Free TRAY Apps
.TRD	TrID Definitions Package	Free TRD Apps
.TRF	Smaart Transfer Function File	Free TRF Apps
.TRF	TorrentRover File	Free TRF Apps
.TRK	CompeGPS Land Track File	Free TRK Apps
.TRK	Finale Track Mapping File	Free TRK Apps
.TRK	Garmin Track File	Free TRK Apps
.TRM	FTR Media File	Free TRM Apps
.TRS	Rosetta Stone Language Data File	Free TRS Apps
.TRS	WinTrack Railroad Track Text File	Free TRS Apps
.TRX	Firmware Image File	Free TRX Apps
.TRX	WebAuthorize Batch File	Free TRX Apps
.TS	Qt Translation Source File	Free TS Apps
.TSK	Top Silkscreen File	Free TSK Apps
.TSL	Tracker Status Log	Free TSL Apps
.TSR	Tracker Status Report	Free TSR Apps
.TST	TestPoint Test File	Free TST Apps
.TSV	Tab Separated Values File	Free TSV Apps
.TT10	TurboTax Canada 2010 Tax Return	Free TT10 Apps
.TT11	TurboTax Canada 2011 Tax Return	Free TT11 Apps
.TT12	TurboTax Canada 2012 Tax Return	Free TT12 Apps
.TT13	TurboTax Canada 2013 Tax Return	Free TT13 Apps
.TT14	TurboTax Canada 2014 Tax Return	Free TT14 Apps
.TT15	TurboTax Canada 2015 Tax Return	Free TT15 Apps
.TT16	TurboTax Canada 2016 Tax Return	Free TT16 Apps
.TT17	TurboTax Canada 2017 Tax Return	Free TT17 Apps
.TT18	TurboTax Canada 2018 Tax Return	Free TT18 Apps
.TT2012STATE	TurboTax 2012 State Tax Form	Free TT2012STATE Apps
.TT2013STATE	TurboTax 2013 State Tax Form	Free TT2013STATE Apps
.TT2014STATE	TurboTax 2014 State Tax Form	Free TT2014STATE Apps
.TT2015STATE	TurboTax 2015 State Tax Form	Free TT2015STATE Apps
.TT2016STATE	TurboTax 2016 State Tax Form	Free TT2016STATE Apps
.TT2017STATE	TurboTax 2017 State Tax Form	Free TT2017STATE Apps
.TTD	Tinytag Explorer Data File	Free TTD Apps
.TTK	Catalyst Translation Toolkit	Free TTK Apps
.TTMD	Trail Tracker Trail Map	Free TTMD Apps
.TTSKEY	Tech Tool Store License File	Free TTSKEY Apps
.TVC	TeamViewer Configuration File	Free TVC Apps
.TVDOWNLOAD	TeamViewer Download File	Free TVDOWNLOAD Apps
.TWB	Tableau Workbook File	Free TWB Apps
.TWBX	Tableau Packaged Workbook	Free TWBX Apps
.TWH	Task Wheel Project File	Free TWH Apps
.TWM	theWord Module	Free TWM Apps
.TWZ	theWord Compressed Archive Module	Free TWZ Apps
.TWZIP	theWord Compressed Archive Module	Free TWZIP Apps
.TXA	Midas ViewPoint Text Array List	Free TXA Apps
.TXD	Game Texture Dictionary	Free TXD Apps
.TXF	Tax Exchange Format	Free TXF Apps
.TXF	Transit XV Pack Translation File	Free TXF Apps
.TXN	MySpaceIM Conversation Log File	Free TXN Apps
.TXTRPT	CommScope Teletilt Control System Report	Free TXTRPT Apps
.TYIMPORT	Typinator Set Import File	Free TYIMPORT Apps
.TYSET	Typinator Set File	Free TYSET Apps
.U10	UFile 2010 Tax Return	Free U10 Apps
.U11	UFile 2011 Tax Return	Free U11 Apps
.U12	UFile 2012 Tax Return	Free U12 Apps
.UBJ	Universal Binary JSON File	Free UBJ Apps
.UBOX	Universe Sandbox Data File	Free UBOX Apps
.UCCAPILOG	Microsoft UCC API Log File	Free UCCAPILOG Apps
.UD	OmniPage User Dictionary	Free UD Apps
.UDC	Adobe InDesign User Dictionary	Free UDC Apps
.UDEB	Debian Package File	Free UDEB Apps
.UDS	Sierra Generations File	Free UDS Apps
.UDS	Uniform Data System File	Free UDS Apps
.ULF	Universal List File	Free ULF Apps
.ULP	EAGLE User Language Program	Free ULP Apps
.ULZ	USBlyzer Data Capture File	Free ULZ Apps
.UMF	MediaHolder Universal Media Format File	Free UMF Apps
.UNITYPACKAGE	Unity Package File	Free UNITYPACKAGE Apps
.UOP	Uniform Office Presentation	Free UOP Apps
.UPDATE	ISAPI Update File	Free UPDATE Apps
.UPOI	iGO Points of Interest File	Free UPOI Apps
.UPR	FileMaker User Dictionary	Free UPR Apps
.UPR	Fractal Parameters File	Free UPR Apps
.USEQ	USeq Genome Data File	Free USEQ Apps
.USR	SmartMusic Custom File	Free USR Apps
.USTAR	Uniform Standard Tape Archive Format File	Free USTAR Apps
.UVF	Uncertain Value Format	Free UVF Apps
.UVW	UVW Coordinates File	Free UVW Apps
.UWL	User Word List File	Free UWL Apps
.UWRF	Universal Web Radio File	Free UWRF Apps
.VAL	Valodas Dictionary File	Free VAL Apps
.VAL	Values List	Free VAL Apps
.VAULT	Fontcase Vault File	Free VAULT Apps
.VBPF1	Virtual Business - Personal Finance Data File	Free VBPF1 Apps
.VBW	Visual Basic Workspace File	Free VBW Apps
.VCD	Valve Choreography Data File	Free VCD Apps
.VCD	Value Change Dump File	Free VCD Apps
.VCE	Visual CertExam Exam File	Free VCE Apps
.VCF	vCard File	Free VCF Apps
.VCP	Casio ClassPad Data File	Free VCP Apps
.VCRD	Windows Vault Credentials File	Free VCRD Apps
.VCS	vCalendar Event File	Free VCS Apps
.VCT	VISE Installer Project	Free VCT Apps
.VDB	Symantec Virus Database File	Free VDB Apps
.VDB	OpenVDB Volume Database File	Free VDB Apps
.VDF	AntiVir Virus Definitions File	Free VDF Apps
.VDX	Visio Drawing XML File	Free VDX Apps
.VEC	Orbiter Vector Map File	Free VEC Apps
.VFF	Wii Virtual Fat Filesystem File	Free VFF Apps
.VFS	VentaFax Schedule File	Free VFS Apps
.VI	LabVIEW Virtual Instrument File	Free VI Apps
.VIBE	VibePlayer Haptic File	Free VIBE Apps
.VIP	Stitch Pattern File	Free VIP Apps
.VLE	Virtual Labs Electricity Circuit File	Free VLE Apps
.VLG	VentaFax Logbook File	Free VLG Apps
.VMSD	VMware Snapshot Metadata File	Free VMSD Apps
.VMSN	VMware Snapshot State File	Free VMSN Apps
.VMSS	VMware Suspended State File	Free VMSS Apps
.VMT	Valve Material File	Free VMT Apps
.VOI	VOI Group File	Free VOI Apps
.VOK	PocketVok Vocabulary File	Free VOK Apps
.VOXB	Voxler Network File	Free VOXB Apps
.VPOL	Windows Vault Policy File	Free VPOL Apps
.VPP	VisionPro Job File	Free VPP Apps
.VPP	Visual Paradigm Project File	Free VPP Apps
.VPX	Avast Virus Update File	Free VPX Apps
.VRD	Visio Report Definition File	Free VRD Apps
.VS	GreekToMe Verse List File	Free VS Apps
.VSCH	Windows Vault Schema File	Free VSCH Apps
.VSCONTENT	Visual Studio Content File	Free VSCONTENT Apps
.VSSM	Visio Macro-Enabled Stencil File	Free VSSM Apps
.VSSX	Visio Stencil File	Free VSSX Apps
.VSV	Virtual Machine Saved State File	Free VSV Apps
.VSX	Visio Stencil XML File	Free VSX Apps
.VTX	Visio Template XML File	Free VTX Apps
.VUD	Virtual Machine Undo Drive File	Free VUD Apps
.VVF	Voc Vocabulary File	Free VVF Apps
.VXML	VoiceXML File	Free VXML Apps
.VYM	VYM Mind Map File	Free VYM Apps
.VZM	Verizon Message File	Free VZM Apps
.W02	Split Archive File	Free W02 Apps
.WAB	Windows Address Book	Free WAB Apps
.WAC	Inkling Sketch XML File	Free WAC Apps
.WALLET	MultiDoge Wallet File	Free WALLET Apps
.WALLET	MultiBit Wallet File	Free WALLET Apps
.WB1	Corel Quattro Pro File	Free WB1 Apps
.WB2	Corel Quattro Pro File	Free WB2 Apps
.WB3	Corel Quattro Pro 7 and 8 File	Free WB3 Apps
.WCAT	WinCatalog Collection File	Free WCAT Apps
.WCD	Works Calendar File	Free WCD Apps
.WCF	WebEx Saved Chat Session	Free WCF Apps
.WCP_SETTINGS	Alpha Five Settings File	Free WCP_SETTINGS Apps
.WD3	Offline Explorer Data File	Free WD3 Apps
.WDF	Workshare Compare DeltaFile	Free WDF Apps
.WDF	WinGenea Genealogy File	Free WDF Apps
.WDMON	Wireless Diagnostics Monitor File	Free WDMON Apps
.WDQ	Offline Explorer Queue File	Free WDQ Apps
.WEA	Ecotect Weather File	Free WEA Apps
.WEBAPP	Firefox Web App Manifest File	Free WEBAPP Apps
.WEBPUBLISHHISTORY	Alpha Five Web Publish History File	Free WEBPUBLISHHISTORY Apps
.WFM	Tektronix Waveform Data File	Free WFM Apps
.WFM	dBASE Form	Free WFM Apps
.WGT	IMPS Data File	Free WGT Apps
.WGT	XNBC Synaptic Weights File	Free WGT Apps
.WHF	Wing Helper File	Free WHF Apps
.WID	SAP BusinessObjects Web Intelligence File	Free WID Apps
.WINDOWSLIVECONTACT	Windows Live Contacts File	Free WINDOWSLIVECONTACT Apps
.WJR	ReGet Deluxe Data File	Free WJR Apps
.WK1	Lotus Worksheet	Free WK1 Apps
.WK2	Lotus 2 Worksheet	Free WK2 Apps
.WK3	Lotus 3 Worksheet	Free WK3 Apps
.WK4	Lotus 4 Worksheet	Free WK4 Apps
.WK5	Lotus 5 Worksheet	Free WK5 Apps
.WKE	Lotus 1-2-3 Educational Version Worksheet	Free WKE Apps
.WLX	WinList Analysis Protocol File	Free WLX Apps
.WNK	Wink Presentation	Free WNK Apps
.WORLD	Worlds.com World File	Free WORLD Apps
.WPC	Pazzles Cutting File	Free WPC Apps
.WPC	WordPad Converter File	Free WPC Apps
.WPF	WordPerfect Form	Free WPF Apps
.WPK	GuinXell Package File	Free WPK Apps
.WPO	HOLUX Waypoint File	Free WPO Apps
.WPO	Technopress Waypoint 2D File	Free WPO Apps
.WPOST	Windows Live Writer Post File	Free WPOST Apps
.WS	1-2-3 Word Search Maker Puzzle File	Free WS Apps
.WSI	Wise Package Studio Installer Package	Free WSI Apps
.WSM	Wise Package Studio Merge Module	Free WSM Apps
.WTB	Win-Test Binary Log File	Free WTB Apps
.WTML	WorldWide Telescope Data File	Free WTML Apps
.WTR	Encarta File	Free WTR Apps
.WVP	MagicHTML Web Video Player Project	Free WVP Apps
.XAF	Affirm Deposition Transcript	Free XAF Apps
.XAIML	XAIML Chatterbot Database File	Free XAIML Apps
.XAPPL	Spoon XML Application Configuration File	Free XAPPL Apps
.XAS	Pro/ENGINEER Assembly Instance Accelerator File	Free XAS Apps
.XBC	SMART Notebook File	Free XBC Apps
.XBD	DocuWorks Binder File	Free XBD Apps
.XBK	SMART Notebook File	Free XBK Apps
.XBRL	XBRL Document	Free XBRL Apps
.XBT	SMART Notebook Template File	Free XBT Apps
.XCCRASHPOINT	Xcode Crash Point File	Free XCCRASHPOINT Apps
.XCPLUGINDATA	Xcode Plug-in Data File	Free XCPLUGINDATA Apps
.XCSL	CineStyle Color Correction File	Free XCSL Apps
.XDB	Symantec Virus Database File	Free XDB Apps
.XDF	Microsoft Machine Learning Server Data File	Free XDF Apps
.XDNA	DNA Strider Sequence File	Free XDNA Apps
.XDP	XML Data Package	Free XDP Apps
.XDS	LcdStudio Design File	Free XDS Apps
.XEF	eManager Form Data	Free XEF Apps
.XEM	PowerDesigner Model definition File	Free XEM Apps
.XER	Primavera P6 Project File	Free XER Apps
.XFD	XFD File	Free XFD Apps
.XFD	FormFlow 99 Form Data File	Free XFD Apps
.XFDF	Adobe Acrobat XFDF File	Free XFDF Apps
.XFLOW	FlowExchange Data File	Free XFLOW Apps
.XFO	XSL-FO Formatted Form	Free XFO Apps
.XFR	iProcess Process Definition File	Free XFR Apps
.XFT	Adobe Form Designer 5.0 File	Free XFT Apps
.XGML	Graph Modeling Language XML File	Free XGML Apps
.XGMML	XGMML Graph File	Free XGMML Apps
.XGP	Xfire Game Patcher File	Free XGP Apps
.XLC	Excel Chart	Free XLC Apps
.XLE	Levelogger Software XML Data File	Free XLE Apps
.XLF	XLIFF Document	Free XLF Apps
.XLGC	ExpressK Database File	Free XLGC Apps
.XLIFF	XLIFF Localization File	Free XLIFF Apps
.XLT	Excel Template	Free XLT Apps
.XLW	Excel Workbook	Free XLW Apps
.XMAP	XMind 2007/2008 Workbook	Free XMAP Apps
.XMCD	Mathcad Worksheet File	Free XMCD Apps
.XMCT	Mathcad XML Worksheet Template	Free XMCT Apps
.XMD	ExamSoft Answer File	Free XMD Apps
.XMI	XML Metadata Interchange File	Free XMI Apps
.XMIND	XMind Workbook File	Free XMIND Apps
.XML	XML File	Free XML Apps
.XMLPER	LeCroy Binary Waveform File	Free XMLPER Apps
.XMP	XMind Markers Package	Free XMP Apps
.XMPZ	Miradi XML Project File	Free XMPZ Apps
.XMWX	ExamSoft Working File	Free XMWX Apps
.XMZX	ExamSoft Exam File	Free XMZX Apps
.XPDL	XPDL Module	Free XPDL Apps
.XPG	Autoplay Media Studio Exported Page	Free XPG Apps
.XPJ	Micro Planner X-Pert Project File	Free XPJ Apps
.XPJ	RoboHelp HTML Project File	Free XPJ Apps
.XPLL	Pull-Planner Data File	Free XPLL Apps
.XPM	Micro Planner Manager File	Free XPM Apps
.XPR	SyncRO Soft oXygen XML Editor Project	Free XPR Apps
.XPT	SAS Transport File	Free XPT Apps
.XRB	XMind Resource Bundle	Free XRB Apps
.XRDML	XRDML Data File	Free XRDML Apps
.XRFF	Extensible Attribute-Relation File Format	Free XRFF Apps
.XRP	RationalPlan Project File	Free XRP Apps
.XRY	XRY Data File	Free XRY Apps
.XSC	Visual Studio Dataset Internal Info File	Free XSC Apps
.XSF	InfoPath Form Definition File	Free XSF Apps
.XSL	XML Style Sheet	Free XSL Apps
.XSLT	XSL Transformation File	Free XSLT Apps
.XSVF	Xilinx Serial Vector Format File	Free XSVF Apps
.XTG	Extensible TreeGraph File	Free XTG Apps
.XTM	Xtremsplit Data File	Free XTM Apps
.XTM	CmapTools Exported Topic Map	Free XTM Apps
.XTP	XTree Data File	Free XTP Apps
.XTP	xTime Project Document	Free XTP Apps
.XUM	Excel Unit Operation Model File	Free XUM Apps
.XVCT	VISE XML Project File	Free XVCT Apps
.XXD	Brixx Planner Calendar	Free XXD Apps
.XYZ	Celestia Sampled Trajectory Data File	Free XYZ Apps
.XYZ	Molecule Specification File	Free XYZ Apps
.XYZV	Celestia Sampled Trajectory File	Free XYZV Apps
.YAM	Yahoo! Auctions Data	Free YAM Apps
.YCHAT	Yahoo! Messenger Chat Log	Free YCHAT Apps
.YGF	Y Graph Format File	Free YGF Apps
.YKA	Yenka Model File	Free YKA Apps
.YRCBKM	YRC Bookmarks Archive	Free YRCBKM Apps
.YRCDAT	YRC Software Data Script	Free YRCDAT Apps
.YUMTX	YUM Transaction File	Free YUMTX Apps
.ZAP	ZoneAlarm Pro Data File	Free ZAP Apps
.ZDB	Zimbra Database File	Free ZDB Apps
.ZDB	EPSQ Database	Free ZDB Apps
.ZDB	Quicken Online File	Free ZDB Apps
.ZDC	CD Catalog Expert Database File	Free ZDC Apps
.ZDCT	Adobe Language File	Free ZDCT Apps
.ZIM	OpenZIM Wiki Archive	Free ZIM Apps
.ZIX	Quicken Online File	Free ZIX Apps
.ZMA	Impedance File	Free ZMA Apps
.ZMC	ZoneAlarm Quarantine File	Free ZMC Apps
.ZPL	Zoom Player Playlist	Free ZPL Apps
Extension	File Type	Free Apps

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