Data Files
Data files are the most common type of computer files. They may be installed with applications or created by users. Most data files are saved in a binary format, though some store data as plain text. Examples of data files include libraries, project files, and saved documents.
NOTE: The Data Files category encompasses other more specific categories. File types that do not fit within these subcategories are placed in this category.
Common data file extensions include .DAT, .XML, and .VCF.
| Extension | File Type | Popularity |
|---|---|---|
| .TA9 | TaxAct 2019 Tax Return File | 4.5 |
| .MS10 | Multisim 10 Circuit Design File | 4.5 |
| .SBD | Office Accounting Company Data File | 4.3 |
| .BDC | Babylon Dictionary File | 4.3 |
| .MXAD | Mandelbrot Explorer All Data File | 4.3 |
| .LDF | SQL Server Transaction Log File | 4.2 |
| .HYV | Team Manager Meet Event File | 4.2 |
| .VMT | Valve Material File | 4.2 |
| .TXD | Game Texture Dictionary | 4.2 |
| .MDL | MathWorks Simulink Model | 4.2 |
| .XEM | PowerDesigner Model Definition File | 4.2 |
| .XTM | CmapTools Exported Topic Map | 4.2 |
| .EBUILD | Portage eBuild Script | 4.1 |
| .NITF | National Imagery Transmission Format File | 4.1 |
| .RSV | RSView32 Project File | 4.1 |
| .PPTX | Microsoft PowerPoint Presentation | 4.1 |
| .PPSM | Microsoft PowerPoint Macro-Enabled Show | 4.1 |
| .MET | eMule Resource File | 4.1 |
| .TDB | Android Thumbnail Cache | 4.1 |
| .HDF | Hierarchical Data Format (Version 4) | 4.1 |
| .DAT | Data File | 4.0 |
| .BLD | Envisioneer Building Project File | 4.0 |
| .OBB | Android Opaque Binary Blob File | 4.0 |
| .TAX2010 | TurboTax 2010 Tax Return | 4.0 |
| .TAX2025 | TurboTax 2025 Tax Return | 4.0 |
| .QB2017 | QuickBooks 2017 for Mac Data File | 4.0 |
| .QUICKENDATA | Quicken Essentials for Mac Data File | 4.0 |
| .NOT | Notation File | 4.0 |
| .KDC | Kaspersky Virus Database File | 4.0 |
| .NCORX | Adobe Encore Project | 4.0 |
| .CAPT | Capito Data File | 4.0 |
| .PRDX | Presentations Document | 4.0 |
| .T20 | H&R Block 2020 Tax Return | 4.0 |
| .TT25 | TurboTax Canada 2025 Tax Return | 4.0 |
| .H17 | H&R Block Canada 2017 Tax Return | 4.0 |
| .H13 | H&R Block Canada 2013 Tax Return | 4.0 |
| .IGC | International Gliding Commission Data File | 4.0 |
| .KTH | Keynote Theme | 4.0 |
| .POI | Magellan Maestro Point of Interest File | 4.0 |
| .TBL | StarCraft Information Table | 4.0 |
| .TOPC | TopicCrunch Project File | 4.0 |
| .SQ | Sysquake Program | 4.0 |
| .GLS | Babylon Glossary File | 4.0 |
| .SQR | SQL Program File | 4.0 |
| .FSC | Practical Scriptwriter File | 4.0 |
| .RGO | RepliGo File | 4.0 |
| .ABCD | AudioVisual Book Data File | 4.0 |
| .KPR | KPresenter Presentation | 4.0 |
| .DM2 | Toad Data Modeler 2 File | 4.0 |
| .VOK | PocketVok Vocabulary File | 4.0 |
| .STYK | Stykz Stick Figure | 4.0 |
| .WJR | ReGet Deluxe Data File | 4.0 |
| .MMC | Microsoft Media Catalog | 4.0 |
| .BGT | Graphics Accounts Data File | 4.0 |
| .T05 | TaxCut 2005 Tax Return | 4.0 |
| .LDIF | LDAP Data Interchange Format File | 4.0 |
| .MOSAIC | MacOSaiX Mosaic File | 4.0 |
| .PLW | PicoLog Data File | 4.0 |
| .WTB | Win-Test Binary Log | 4.0 |
| .DRL | Gerber Drill Rack File | 4.0 |
| .RAL | WinRail Track Design File | 4.0 |
| .GGB | GeoGebra Worksheet | 4.0 |
| .PRS | Harvard Graphics Presentation | 4.0 |
| .LOC | GPS Location File | 4.0 |
| .PPT | Microsoft PowerPoint Presentation (Legacy) | 4.0 |
| .BIN | Generic Binary File | 4.0 |
| .CWK | ClarisWorks Document | 3.9 |
| .CURSORFX | CursorFX Theme File | 3.9 |
| .MDF | Measurement Data Format File | 3.9 |
| .JEF | Janome Embroidery Format File | 3.9 |
| .BDIC | Chrome Dictionary File | 3.9 |
| .MENC | Windows Mobile Encrypted File | 3.9 |
| .DIF | Data Interchange Format | 3.9 |
| .FCPEVENT | Final Cut Pro Event File | 3.9 |
| .ADT | ACT! Document Template | 3.9 |
| .LCM | Lipikar Custom Map File | 3.9 |
| .CEL | Affymetrix Probe Results File | 3.9 |
| .OPX | OrgPlus Org Chart | 3.9 |
| .OTLN | Opal Outline File | 3.9 |
| .MLS | Milestones Simplicity File | 3.9 |
| .TCC | TimeCalc Classic Data File | 3.9 |
| .EXX | IBM Linkway MsgPut File | 3.9 |
| .AIFB | AIF Builder Project File | 3.9 |
| .VCS | vCalendar Event | 3.9 |
| .EDI | Electronic Data Interchange File | 3.9 |
| .PC | Personal Composer File | 3.9 |
| .PHOTOSLIBRARY | Photos Library | 3.9 |
| .CDX | Compound Index File | 3.8 |
| .ODP | OpenDocument Presentation | 3.8 |
| .OVF | Open Virtualization File | 3.8 |
| .NET | netViz Project File | 3.8 |
| .RFA | Revit Family File | 3.8 |
| .CONTACT | Windows Contact File | 3.8 |
| .TRK | CompeGPS Land Track File | 3.8 |
| .ROX | Roxio Project File | 3.8 |
| .OPJU | Origin Unicode Project | 3.8 |
| .AAM | Authorware Map File | 3.8 |
| .OVA | Open Virtual Appliance | 3.8 |
| .VDF | AntiVir Virus Definitions File | 3.8 |
| .T12 | At Home 2012 Tax Return | 3.8 |
| .XLF | XLIFF Document | 3.8 |
| .JPH | JProbe Memory Snapshot | 3.8 |
| .LMS | LenMus Score File | 3.8 |
| .IP | IconPackager Theme File | 3.8 |
| .PPS | Microsoft PowerPoint Slide Show (Legacy) | 3.8 |
| .MAI | Microsoft Mail File | 3.8 |
| .TAR | Tape Archive | 3.8 |
| .ENL | EndNote Library | 3.8 |
| .GRF | DPlot Graph File | 3.8 |
| .PCB | Printed Circuit Board Design File | 3.8 |
| .CKT | CircuitMaker File | 3.8 |
| .DMC | Datamartist Data Canvas File | 3.8 |
| .NDX | dBASE Index (Legacy) | 3.8 |
| .UWL | User Word List File | 3.8 |
| .CLP | CrazyTalk Clip File | 3.8 |
| .TAX2009 | TurboTax 2009 Tax Return | 3.8 |
| .CUB | Analysis Services Cube File | 3.8 |
| .QUICKEN2015 | Quicken 2015 Data File | 3.8 |
| .ROADTRIP | Road Trip Planner File | 3.8 |
| .TDL | Tab Delineated Format File | 3.8 |
| .ZAP | ZoneAlarm Pro Data File | 3.8 |
| .WAB | Windows Address Book | 3.8 |
| .NNP | ANNI Neural Network Portfolio File | 3.8 |
| .LIVEREG | Symantec Antivirus Session File | 3.8 |
| .TTK | Catalyst Translation Toolkit | 3.8 |
| .DOCKZIP | ObjectDock File | 3.8 |
| .GRADE | GradeStat Document | 3.8 |
| .PTF | Scrapbook Flair Template | 3.7 |
| .PDX | Adobe Acrobat Index File | 3.7 |
| .JNT | Windows Journal File | 3.7 |
| .CAV | Comodo Virus Definitions File | 3.7 |
| .INK | Mimio Notebook | 3.7 |
| .TMX | Translation Memory Exchange File | 3.7 |
| .TRD | TrID Definitions Package | 3.7 |
| .PRJ | AIMMS Project File | 3.7 |
| .DCMD | DiskCatalogMaker Thumbnail-Enabled Catalog | 3.7 |
| .A6P | Authorware 6 Project | 3.7 |
| .BLG | Windows Binary Performance Log File | 3.7 |
| .RP | Axure RP Project File | 3.7 |
| .LIB | Generic Data Library | 3.7 |
| .LOG | Log File | 3.7 |
| .MWF | MapGuide Author Map Window File | 3.7 |
| .T10 | At Home 2010 Tax Return | 3.7 |
| .PRO6PLX | ProPresenter 6 Playlist Bundle | 3.7 |
| .PCR | PCMark Vantage Benchmark File | 3.7 |
| .U10 | UFile 2010 Tax Return | 3.7 |
| .PAB | Personal Address Book | 3.7 |
| .Q09 | QuickTax 2009 Tax Return | 3.7 |
| .DVO | Cook'n Cookbook File | 3.7 |
| .QPB | QuickBooks Point of Sale Data File | 3.7 |
| .OO3 | OmniOutliner 3 File | 3.7 |
| .EMLXPART | Mail Message Attachment | 3.7 |
| .PHB | Motorola Phone Book File | 3.7 |
| .AZZ | AZZ Cardfile Database File | 3.7 |
| .MDL | Rational Rose Model File | 3.7 |
| .RDB | N64 ROM Database | 3.7 |
| .IMT | My Time Data File | 3.7 |
| .I5Z | IUCLID 5 Import/Export File | 3.7 |
| .EGP | Easy Grade Pro Gradebook File | 3.7 |
| .ACC | Graphics Accounts Data File | 3.7 |
| .KEYCHAIN | Mac OS X Keychain File | 3.7 |
| .RBT | LEGO MINDSTORMS NXT Program | 3.6 |
| .FCS | Flow Cytometry Standard File | 3.6 |
| .RSC | Symbian Application Compiled Resource File | 3.6 |
| .PKT | Packet Tracer Network Simulation Model | 3.6 |
| .PFC | AOL Personal Filing Cabinet | 3.6 |
| .3DR | 3DMark Results File | 3.6 |
| .UCCAPILOG | Microsoft UCC API Log File | 3.6 |
| .OTP | OpenDocument Presentation Template | 3.6 |
| .FOB | Dynamics NAV Object Container File | 3.6 |
| .MOX | ExtendSim Simulation Software Model | 3.6 |
| .SDF | Structure Data File | 3.6 |
| .KEY | Apple Keynote Presentation | 3.6 |
| .ACS | Agent Character File | 3.6 |
| .BGL | Babylon Glossary File | 3.6 |
| .IN | Input File | 3.6 |
| .XML | XML File | 3.6 |
| .IDX | Navigation POI File | 3.6 |
| .H12 | At Home Canada 2012 Tax Return | 3.6 |
| .WDF | Workshare Compare DeltaFile | 3.6 |
| .BVP | VodaHost BlueVoda Project File | 3.6 |
| .PJ2 | xPlan Document | 3.6 |
| .PPF | Edgecam Pathtrace Part File | 3.6 |
| .RFO | RoboForm Option File | 3.6 |
| .CURXPTHEME | CursorXP Theme File | 3.6 |
| .MBG | Microsoft Mailbag | 3.6 |
| .MFO | Perl ModInfo Descriptor File | 3.6 |
| .HST | History File | 3.6 |
| .L6T | Line 6 Tone File | 3.6 |
| .FDB | Portfolio Catalog | 3.6 |
| .PDB | Protein Data Bank File | 3.6 |
| .Q08 | QuickTax 2008 Tax Return | 3.6 |
| .GEDCOM | GEDCOM Genealogy File | 3.6 |
| .TRS | WinTrack Railroad Track Text File | 3.6 |
| .TSV | Tab-Separated Values File | 3.6 |
| .QVW | QlikView Document | 3.6 |
| .VDB | Symantec Virus Database File | 3.6 |
| .FDB | Art Explosion Catalog | 3.6 |
| .RET | BusinessObjects Template | 3.6 |
| .PPSX | Microsoft PowerPoint Slide Show | 3.6 |
| .RVT | Revit Project File | 3.6 |
| .SAV | SPSS Data File | 3.5 |
| .FOX | InfoZoom Data File | 3.5 |
| .TXN | MySpaceIM Conversation Log File | 3.5 |
| .KPF | Komodo Project File | 3.5 |
| .NOTEBOOK | SMART Notebook File | 3.5 |
| .XLT | Microsoft Excel Spreadsheet Template (Legacy) | 3.5 |
| .USR | SmartMusic Custom File | 3.5 |
| .SLX | MathWorks Simulink Model File | 3.5 |
| .OEACCOUNT | Windows Mail Account File | 3.5 |
| .SVF | Serial Vector Format File | 3.5 |
| .II | IconWorkshop Extended Information File | 3.5 |
| .MPKT | MOPEKS Trial File | 3.5 |
| .CMA | Coach Activity File | 3.5 |
| .T18 | H&R Block 2018 Tax Return | 3.5 |
| .SC45 | SuperCard Project File | 3.5 |
| .ABY | AOL Address Book File | 3.5 |
| .MNO | Macromedia Design Note | 3.5 |
| .LY | LilyPond File | 3.5 |
| .EV | Echoview File | 3.5 |
| .XPT | SAS Transport File | 3.5 |
| .HDA | HotDocs Auto-Assemble File | 3.5 |
| .QPF | Quartus II Project File | 3.5 |
| .MPZ | Miradi Project File | 3.5 |
| .CLK | Corel R.A.V.E Project File | 3.5 |
| .BCM | Business Contact Manager File | 3.5 |
| .MNC | My Notes Center Notebook | 3.5 |
| .ITL | iTunes Library File | 3.5 |
| .SEN | SenTest Data File | 3.5 |
| .BCI | Belarc Advisor Report File | 3.5 |
| .PKS | Oracle Package Spec File | 3.5 |
| .GWK | GraphiCode PCB Job File | 3.5 |
| .OFC | Open Financial Connectivity File | 3.5 |
| .GRV | Office Groove File | 3.5 |
| .DSY | Directory Synchronizer Project File | 3.5 |
| .RCG | Recog Character Recognition Set | 3.5 |
| .DVDPROJ | iDVD Project File | 3.5 |
| .DFPROJ | DVD Flick Project | 3.5 |
| .RPT | Crystal Reports File | 3.5 |
| .XFD | XFD File | 3.5 |
| .PPTM | Microsoft PowerPoint Macro-Enabled Presentation | 3.5 |
| .MPP | Microsoft Project File | 3.5 |
| .ONE | OneNote Document | 3.5 |
| .POTM | Microsoft PowerPoint Macro-Enabled Template | 3.5 |
| .PAF | Personal Ancestral File | 3.5 |
| .MOHO | Moho Animation Project | 3.4 |
| .VCF | vCard File | 3.4 |
| .EXIF | Exchangeable Image Information File | 3.4 |
| .QDF | Quicken Data File | 3.4 |
| .AW | Answer Wizard File | 3.4 |
| .DSZ | Orchida (OES) Embroidery File | 3.4 |
| .TRA | WinTrack Railroad Track File | 3.4 |
| .WINDOWSLIVECONTACT | Windows Live Contacts File | 3.4 |
| .EFX | eFax Document | 3.4 |
| .MJK | Question File | 3.4 |
| .JBI | Motoman Robot Job File | 3.4 |
| .LP7 | LP7 Digitally Signed File | 3.4 |
| .FLP | ActivPrimary Flipchart File | 3.4 |
| .PDS | Planetary Data System File | 3.4 |
| .SEO | SEO Note File | 3.4 |
| .ANME | Anime Studio Document | 3.4 |
| .FFWP | FormsForWeb Packet | 3.4 |
| .LAS | LIDAR Data Exchange File | 3.4 |
| .GBR | Gerber File | 3.4 |
| .SPS | SPSS Program File | 3.4 |
| .LBL | NiceLabel Template File | 3.4 |
| .TST | TestPoint Test File | 3.4 |
| .XSL | XML Stylesheet | 3.4 |
| .STM | Exchange Streaming Media File | 3.4 |
| .OFX | Open Financial Exchange File | 3.4 |
| .EMB | Wilcom Embroidery Design File | 3.4 |
| .CSV | Comma-Separated Values File | 3.3 |
| .AAE | Sidecar Image Edit File | 3.3 |
| .PST | Outlook Personal Information Store | 3.3 |
| .QB2013 | QuickBooks 2013 File | 3.3 |
| .GDT | gretl Datafile | 3.3 |
| .LIVEUPDATE | Symantec LiveUpdate File | 3.3 |
| .QUICKEN2017 | Quicken 2017 Data File | 3.3 |
| .FMAT | FMAT Runfile | 3.3 |
| .QB2011 | QuickBooks 2011 File | 3.3 |
| .T13 | H&R Block 2013 Tax Return | 3.3 |
| .PTZ | E-Transcript Bundle File | 3.3 |
| .RTE | Revit Project Template | 3.3 |
| .POTX | Microsoft PowerPoint Presentation Template | 3.3 |
| .LGI | Multimedia Logic File | 3.3 |
| .SLK | Symbolic Link File | 3.3 |
| .PDAS | PDAStore Data Store File | 3.3 |
| .HL | HeuristicLab Storage File | 3.3 |
| .MYI | MySQL MyISAM Index File | 3.3 |
| .T07 | TaxCut 2007 Tax Return | 3.3 |
| .ASND | Adobe Sound Document | 3.3 |
| .XPG | Autoplay Media Studio Exported Page | 3.3 |
| .JRPRINT | JasperReports Print File | 3.3 |
| .TAX2018 | TurboTax 2018 Tax Return | 3.3 |
| .RPP | REAPER Project File | 3.3 |
| .GCW | Microsoft Mathematics Worksheet | 3.3 |
| .TPF | Transit NXT Pack Translation File | 3.3 |
| .WPC | WordPad Converter File | 3.3 |
| .XRDML | XRDML Data File | 3.3 |
| .ENEX | Evernote Archive | 3.3 |
| .TAX2015 | TurboTax 2015 Tax Return | 3.3 |
| .NPL | Nokia Playlist File | 3.3 |
| .CELTX | Celtx Project File | 3.3 |
| .T19 | H&R Block 2019 Tax Return | 3.3 |
| .OMP | Office Manager Document Archive | 3.3 |
| .DAM | DeltaMaster Analysis Model | 3.3 |
| .GRK | Gradekeeper Class Gradebook File | 3.3 |
| .PDFIG | PDF Index Generator Project File | 3.3 |
| .XMCD | Mathcad Worksheet File | 3.3 |
| .PRJ | Project File | 3.2 |
| .4DV | 4D View Ultrasound File | 3.2 |
| .GPI | Garmin Point of Interest File | 3.2 |
| .MDM | HLM Multivariate Data Matrix File | 3.2 |
| .PLS | MYOB Accounting Data File | 3.2 |
| .MDSX | MEGA Saved Session | 3.2 |
| .VXML | VoiceXML File | 3.2 |
| .FPSL | FileMaker Pro Snapshot Link | 3.2 |
| .TB | Tabbery Tab File | 3.2 |
| .CVN | CineVision Encoding Session | 3.2 |
| .KPZ | Komodo Template File | 3.2 |
| .CDF | Common Data Format | 3.2 |
| .TBK | ToolBook File | 3.2 |
| .LVM | LabVIEW Measurement File | 3.2 |
| .VCE | Visual CertExam Exam File | 3.2 |
| .WB3 | Corel Quattro Pro 7 and 8 File | 3.2 |
| .SCD | TurboTax Tax Schedule List | 3.2 |
| .ER1 | ERWin Entity Relationship Diagram | 3.2 |
| .STYKZ | Stykz Animation | 3.2 |
| .GED | GEDCOM Genealogy Data File | 3.2 |
| .VCD | Value Change Dump File | 3.2 |
| .TAX2017 | TurboTax 2017 Tax Return | 3.2 |
| .QB2014 | QuickBooks 2014 File | 3.1 |
| .SIM | SAP Tutor File | 3.1 |
| .TEF | TablEdit Tablature | 3.1 |
| .TWB | Tableau Workbook File | 3.1 |
| .FXP | Adobe Flex Project File | 3.1 |
| .IES | IES Photometric Data File | 3.1 |
| .OUT | Output File | 3.1 |
| .ADCP | Adobe Device Central Project File | 3.1 |
| .CLG | Collage Maker Project File | 3.1 |
| .STA | ABAQUS Status File | 3.1 |
| .BTM | BizTalk Map File | 3.1 |
| .CAP | Packet Capture File | 3.1 |
| .TAX2013 | TurboTax 2013 Tax Return | 3.1 |
| .MDJ | StarUML Model File | 3.1 |
| .ABP | AVS Barcode Profile | 3.1 |
| .M | Wolfram Mathematica Language Package | 3.1 |
| .CDX | ChemDraw Exchange File | 3.1 |
| .PTB | Power Tab File | 3.1 |
| .CTF | WhereIsIt Catalog | 3.1 |
| .PCAPNG | Pcap-NG Packet Capture File | 3.0 |
| .ID2 | Windows Live Messenger Emoticon File | 3.0 |
| .IMA | Sage ACT! Email Message | 3.0 |
| .XSLT | Extensible Stylesheet Language Transformations File | 3.0 |
| .IBA | iBooks Author Document | 3.0 |
| .QMTF | Quicken Mac Transfer File | 3.0 |
| .XPJ | RoboHelp HTML Project | 3.0 |
| .T11 | At Home 2011 Tax Return | 3.0 |
| .DSB | Wondershare DVD Slideshow Builder Project | 3.0 |
| .T16 | H&R Block 2016 Tax Return | 3.0 |
| .TAX2024 | TurboTax 2024 Tax Return | 3.0 |
| .T08 | TaxCut 2008 Tax Return | 3.0 |
| .JDB | Symantec Endpoint Protection Update File | 3.0 |
| .GLD | Ground Loop Design Work File | 3.0 |
| .NNI | ANNI Neural Network Investing File | 3.0 |
| .PTN | PaperPort Thumbnail File | 3.0 |
| .CNA | Catena Project File | 3.0 |
| .BRW | Calyx Point Borrower File | 3.0 |
| .IX2 | WordPerfect Address Book File | 3.0 |
| .SBW | US Treasury Savings Bonds Wizard File | 3.0 |
| .AMSORM | OnLine Ringman Auction Client File | 3.0 |
| .BJO | TabRite Tablature File | 3.0 |
| .WGT | XNBC Synaptic Weights File | 3.0 |
| .DII | Summation Batch Load File | 3.0 |
| .WEA | Ecotect Weather File | 3.0 |
| .MMP | MindManager Mind Map | 3.0 |
| .OR6 | Lotus Organizer 6 File | 3.0 |
| .PSPD | PhotoSuite 5 Project File | 3.0 |
| .NPT | Portfolio NetPublish Template | 3.0 |
| .SQD | SQ Data File | 3.0 |
| .PEP | TurboProject Project File | 3.0 |
| .HS2 | HyperRESEARCH 2 Study File | 3.0 |
| .DSEVENTS | Driver Station Events Log | 3.0 |
| .PD5 | Windows Live Photo Gallery Information File | 3.0 |
| .FOP | InfoZoom Protected Data File | 3.0 |
| .DAS | DeltaMaster Analysis Session | 3.0 |
| .ULF | Universal List File | 3.0 |
| .ITX | FileNet eForms Designer Template | 3.0 |
| .PD4 | Windows Live Photo Gallery Information File | 3.0 |
| .GNO | GenoPro Genealogy Tree File | 3.0 |
| .T06 | TaxCut 2006 Tax Return | 3.0 |
| .PPF | Transit NXT Pack Project File | 3.0 |
| .EPF | Edgecam Educational Part File | 3.0 |
| .SDP | Session Description Protocol File | 3.0 |
| .VRD | Visio Report Definition File | 3.0 |
| .WCD | Works Calendar File | 3.0 |
| .XRP | RationalPlan Project File | 3.0 |
| .MEX | Macro Express File | 3.0 |
| .ROU | Gerber Route File | 3.0 |
| .TE3 | WinTrack Object File | 3.0 |
| .QIF | Quicken Interchange Format File | 3.0 |
| .GAN | GanttProject Project File | 3.0 |
| .SPV | SPSS Output Document | 2.9 |
| .XFDF | Adobe Acrobat XFDF File | 2.9 |
| .MCDX | Mathcad Prime Document | 2.9 |
| .MCD | Mathcad Document | 2.9 |
| .DCM | DiskCatalogMaker Catalog | 2.9 |
| .QFX | Quicken Financial Exchange File | 2.9 |
| .QBW | QuickBooks for Windows Company File | 2.9 |
| .INX | Compiled Script | 2.9 |
| .ISF | Inspiration Flowchart Document | 2.9 |
| .MAT | MATLAB MAT-file | 2.9 |
| .MMF | Meal-Master Recipe File | 2.9 |
| .PPP | CyberLink PowerProducer Project | 2.9 |
| .TAX2019 | TurboTax 2019 Tax Return | 2.8 |
| .TS | Qt Translation Source File | 2.8 |
| .MDC | Multi Dimension Cube File | 2.8 |
| .DBD | DemoShield Project | 2.8 |
| .FMC | FormConnect Form File | 2.8 |
| .WSI | Wise Package Studio Installer Package | 2.8 |
| .NDK | Lotus Notes Design Elements File | 2.8 |
| .DAL | DVD-lab Project File | 2.8 |
| .POD | OpenProj Project File | 2.8 |
| .PXL | Pocket Excel File | 2.8 |
| .FTW | Family Tree Maker File | 2.8 |
| .EXP | Export File | 2.8 |
| .TT10 | TurboTax Canada 2010 Tax Return | 2.8 |
| .TAX2011 | TurboTax 2011 Tax Return | 2.8 |
| .XDB | Symantec Virus Database File | 2.8 |
| .GC | GraphClick File | 2.8 |
| .XRY | XRY Data File | 2.8 |
| .MW | Maple Worksheet | 2.7 |
| .ITMSP | iTunes Store Package | 2.7 |
| .QB2010 | QuickBooks 2010 File | 2.7 |
| .PNPROJ | Programmer's Notepad Project File | 2.7 |
| .MBX | Outlook Express Mailbox | 2.7 |
| .FHC | FHC Data File | 2.7 |
| .DDCX | DivX Descriptor 2 File | 2.6 |
| .HML | HostMonitor TestList File | 2.6 |
| .SLE | Sisulizer Package File | 2.6 |
| .VDX | Microsoft Visio XML Drawing | 2.6 |
| .CAF | Class Action Gradebook File | 2.6 |
| .MWS | Maple Classic Worksheet | 2.6 |
| .ESX | Xactimate Insurance Claims Estimate | 2.6 |
| .MTW | Minitab Worksheet File | 2.6 |
| .FLO | iGrafx FlowCharter File | 2.6 |
| .VI | LabVIEW Virtual Instrument File | 2.6 |
| .XDNA | DNA Strider Sequence File | 2.5 |
| .QB2012 | QuickBooks 2012 File | 2.5 |
| .TT12 | TurboTax Canada 2012 Tax Return | 2.5 |
| .PJM | xPlan Model | 2.5 |
| .T09 | At Home 2009 Tax Return | 2.5 |
| .SGML | Standard Generalized Markup Language File | 2.5 |
| .CLM | MagicJack Call Log File | 2.5 |
| .NP | Portfolio NetPublish File | 2.5 |
| .NPR | Nuendo Project File | 2.5 |
| .XPR | SyncRO Soft oXygen XML Editor Project | 2.5 |
| .IGC | Anime List Builder Input File | 2.5 |
| .DDC | DivX Descriptor File | 2.5 |
| .GRR | Gradekeeper Class Roster File | 2.5 |
| .TDM | LabVIEW Binary Measurement File | 2.5 |
| .ROD | Actuate Report Object Design File | 2.5 |
| .QDP | Quick and Dandy Plotter File | 2.5 |
| .KPP | Kid Pix Presentation | 2.5 |
| .BCC | Calendar Creator File | 2.5 |
| .WSM | Wise Package Studio Merge Module | 2.5 |
| .PHM | Pro Home Manager Data File | 2.5 |
| .PMM | Pegasus Mail Mailbox File | 2.5 |
| .SHW | Corel Presentation | 2.5 |
| .EPW | EnergyPlus Weather Data File | 2.4 |
| .PXF | Transit XV Pack Project File | 2.4 |
| .ZDC | CD Catalog Expert Database File | 2.4 |
| .VTX | Visio Template XML File | 2.4 |
| .KID | Kidspiration Document | 2.4 |
| .LGH | HMI Historical Log File | 2.4 |
| .VBPF1 | Virtual Business - Personal Finance Data File | 2.3 |
| .OPX | FlipAlbum Photo Album File | 2.3 |
| .IXB | Ulead Disc Image | 2.3 |
| .KPX | Kid Pix Picture | 2.3 |
| .WNK | Wink Presentation | 2.3 |
| .DMSP | PhotoSuite Project File | 2.3 |
| .LSL | LightScribe Label | 2.3 |
| .QB2009 | QuickBooks 2009 File | 2.2 |
| .ULZ | USBlyzer Data Capture File | 2.2 |
| .BLB | Blob Data File | 2.2 |
| .CSA | PNA Code Calset File | 2.2 |
| .OND | Lotus Notes Encapsulated Memo File | 2.2 |
| .TFA | TreeSoft CashFlow Analysis Data File | 2.1 |
| .TT13 | TurboTax Canada 2013 Tax Return | 2.0 |
| .TET | Textease CT Template | 2.0 |
| .TKFL | TKLinks Saver Favorite Links | 2.0 |
| .SPUB | Disc Cover File | 2.0 |
| .MBG | Mailbag Assistant Mailbox File | 2.0 |
| .ODX | BizTalk Server Orchestration File | 2.0 |
| .TPB | GROMACS Binary Input File | 2.0 |
| .CTM | CrazyTalk Model File | 2.0 |
| .SBX | ESRI Spatial Index File | 1.8 |
| .ITM | iThink Model File | 1.7 |
| .STP | Analysis Studio Project Information File | 1.6 |
| .IVT | Beyond 20/20 Table File | 1.5 |
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