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 |
|---|---|---|
| .H13 | H&R Block Canada 2013 Tax Return | 4.3 |
| .LDF | SQL Server Transaction Log File | 4.2 |
| .TXD | Game Texture Dictionary | 4.2 |
| .MDL | MathWorks Simulink Model | 4.2 |
| .VMT | Valve Material File | 4.2 |
| .XEM | PowerDesigner Model Definition File | 4.2 |
| .BLD | Envisioneer Building Project File | 4.2 |
| .FLT | Flight Simulator Saved Flight | 4.1 |
| .HYV | Team Manager Meet Event File | 4.1 |
| .NITF | National Imagery Transmission Format File | 4.1 |
| .PPTX | Microsoft PowerPoint Presentation | 4.1 |
| .RSV | RSView32 Project File | 4.1 |
| .ADX | Approach Index File | 4.1 |
| .MET | eMule Resource File | 4.1 |
| .DAT | Data File | 4.0 |
| .PPSM | Microsoft PowerPoint Macro-Enabled Show | 4.0 |
| .TDB | Android Thumbnail Cache | 4.0 |
| .PPT | Microsoft PowerPoint Presentation (Legacy) | 4.0 |
| .KDC | Kaspersky Virus Database File | 4.0 |
| .VOK | PocketVok Vocabulary File | 4.0 |
| .EBUILD | Portage eBuild Script | 4.0 |
| .NOT | Notation File | 4.0 |
| .POI | Magellan Maestro Point of Interest File | 4.0 |
| .STYK | Stykz Stick Figure | 4.0 |
| .DM2 | Toad Data Modeler 2 File | 4.0 |
| .T05 | TaxCut 2005 Tax Return | 4.0 |
| .MMC | Microsoft Media Catalog | 4.0 |
| .QUICKENDATA | Quicken Essentials for Mac Data File | 4.0 |
| .ALD | Dynamics AX Application Label Data File | 4.0 |
| .NCORX | Adobe Encore Project | 4.0 |
| .CAPT | Capito Data File | 4.0 |
| .AIFB | AIF Builder Project File | 4.0 |
| .LDIF | LDAP Data Interchange Format File | 4.0 |
| .QB2017 | QuickBooks 2017 for Mac Data File | 4.0 |
| .PRDX | Presentations Document | 4.0 |
| .TAX2010 | TurboTax 2010 Tax Return | 4.0 |
| .PLW | PicoLog Data File | 4.0 |
| .TT20 | TurboTax Canada 2020 Tax Return | 4.0 |
| .BGT | Graphics Accounts Data File | 4.0 |
| .MOSAIC | MacOSaiX Mosaic File | 4.0 |
| .TRK | CompeGPS Land Track File | 4.0 |
| .T20 | H&R Block 2020 Tax Return | 4.0 |
| .KPR | KPresenter Presentation | 4.0 |
| .WJR | ReGet Deluxe Data File | 4.0 |
| .TAX2023 | TurboTax 2023 Tax Return | 4.0 |
| .WTB | Win-Test Binary Log | 4.0 |
| .FSC | Practical Scriptwriter File | 4.0 |
| .TOPC | TopicCrunch Project File | 4.0 |
| .SQR | SQL Program File | 4.0 |
| .SQ | Sysquake Program | 4.0 |
| .DRL | Gerber Drill Rack File | 4.0 |
| .RGO | RepliGo File | 4.0 |
| .FLO | RFFlow Flowchart File | 4.0 |
| .AZZ | AZZ Cardfile Database File | 4.0 |
| .RAL | WinRail Track Design File | 4.0 |
| .HDF | Hierarchical Data Format (Version 4) | 4.0 |
| .H17 | H&R Block Canada 2017 Tax Return | 4.0 |
| .ABCD | AudioVisual Book Data File | 4.0 |
| .TA9 | TaxAct 2019 Tax Return File | 4.0 |
| .XFT | Adobe Form Designer 5.0 File | 4.0 |
| .OBB | Android Opaque Binary Blob File | 4.0 |
| .BIN | Generic Binary File | 4.0 |
| .GGB | GeoGebra Worksheet | 4.0 |
| .PRS | Harvard Graphics Presentation | 4.0 |
| .LOC | GPS Location File | 4.0 |
| .ADT | ACT! Document Template | 4.0 |
| .CUB | Analysis Services Cube File | 3.9 |
| .TMX | Translation Memory Exchange File | 3.9 |
| .CEL | Affymetrix Probe Results File | 3.9 |
| .MDF | Measurement Data Format File | 3.9 |
| .BDIC | Chrome Dictionary File | 3.9 |
| .MENC | Windows Mobile Encrypted File | 3.9 |
| .FCPEVENT | Final Cut Pro Event File | 3.9 |
| .JEF | Janome Embroidery Format File | 3.9 |
| .MLS | Milestones Simplicity File | 3.9 |
| .OTLN | Opal Outline File | 3.9 |
| .TBL | StarCraft Information Table | 3.9 |
| .DIF | Data Interchange Format | 3.9 |
| .CDX | Compound Index File | 3.9 |
| .EXX | IBM Linkway MsgPut File | 3.9 |
| .BLG | Windows Binary Performance Log File | 3.9 |
| .CONTACT | Windows Contact File | 3.9 |
| .EDI | Electronic Data Interchange File | 3.9 |
| .PC | Personal Composer File | 3.9 |
| .VCS | vCalendar Event | 3.9 |
| .ALI | Dynamics AX Label Index File | 3.8 |
| .OVF | Open Virtualization File | 3.8 |
| .PPS | Microsoft PowerPoint Slide Show (Legacy) | 3.8 |
| .PCB | Printed Circuit Board Design File | 3.8 |
| .CLP | CrazyTalk Clip File | 3.8 |
| .ZMC | ZoneAlarm Quarantine File | 3.8 |
| .ROX | Roxio Project File | 3.8 |
| .PKA | Packet Tracer Activity File | 3.8 |
| .OPJU | Origin Unicode Project | 3.8 |
| .AAM | Authorware Map File | 3.8 |
| .ODP | OpenDocument Presentation | 3.8 |
| .VDF | AntiVir Virus Definitions File | 3.8 |
| .JPH | JProbe Memory Snapshot | 3.8 |
| .LMS | LenMus Score File | 3.8 |
| .T12 | At Home 2012 Tax Return | 3.8 |
| .RFA | Revit Family File | 3.8 |
| .OVA | Open Virtual Appliance | 3.8 |
| .IP | IconPackager Theme File | 3.8 |
| .MAI | Microsoft Mail File | 3.8 |
| .LCM | Lipikar Custom Map File | 3.8 |
| .WAB | Windows Address Book | 3.8 |
| .GRF | DPlot Graph File | 3.8 |
| .ENL | EndNote Library | 3.8 |
| .QRP | QuickReport File | 3.8 |
| .NET | netViz Project File | 3.8 |
| .TTK | Catalyst Translation Toolkit | 3.8 |
| .LIVEREG | Symantec Antivirus Session File | 3.8 |
| .ROADTRIP | Road Trip Planner File | 3.8 |
| .UWL | User Word List File | 3.8 |
| .TDL | Tab Delineated Format File | 3.8 |
| .VSX | Visio Stencil XML File | 3.8 |
| .QUICKEN2015 | Quicken 2015 Data File | 3.8 |
| .TAX2009 | TurboTax 2009 Tax Return | 3.8 |
| .DOCKZIP | ObjectDock File | 3.8 |
| .GRADE | GradeStat Document | 3.8 |
| .EGP | Easy Grade Pro Gradebook File | 3.8 |
| .NDX | dBASE Index (Legacy) | 3.8 |
| .ZAP | ZoneAlarm Pro Data File | 3.8 |
| .PHOTOSLIBRARY | Photos Library | 3.7 |
| .INK | Mimio Notebook | 3.7 |
| .PRJ | AIMMS Project File | 3.7 |
| .TCC | TimeCalc Classic Data File | 3.7 |
| .XLF | XLIFF Document | 3.7 |
| .CKT | CircuitMaker File | 3.7 |
| .SDS | OpenOffice Chart | 3.7 |
| .DCMD | DiskCatalogMaker Thumbnail-Enabled Catalog | 3.7 |
| .TAR | Tape Archive | 3.7 |
| .JNT | Windows Journal File | 3.7 |
| .FCS | Flow Cytometry Standard File | 3.7 |
| .CAV | Comodo Virus Definitions File | 3.7 |
| .A6P | Authorware 6 Project | 3.7 |
| .RP | Axure RP Project File | 3.7 |
| .ACC | Graphics Accounts Data File | 3.7 |
| .EMLXPART | Mail Message Attachment | 3.7 |
| .T10 | At Home 2010 Tax Return | 3.7 |
| .RDB | N64 ROM Database | 3.7 |
| .IIF | Intuit Interchange Format File | 3.7 |
| .MWF | MapGuide Author Map Window File | 3.7 |
| .PAB | Personal Address Book | 3.7 |
| .OO3 | OmniOutliner 3 File | 3.7 |
| .DVO | Cook'n Cookbook File | 3.7 |
| .PCR | PCMark Vantage Benchmark File | 3.7 |
| .IMT | My Time Data File | 3.7 |
| .QPB | QuickBooks Point of Sale Data File | 3.7 |
| .PDX | Adobe Acrobat Index File | 3.7 |
| .ACS | Agent Character File | 3.7 |
| .Q08 | QuickTax 2008 Tax Return | 3.7 |
| .PHB | Motorola Phone Book File | 3.7 |
| .U10 | UFile 2010 Tax Return | 3.7 |
| .Q09 | QuickTax 2009 Tax Return | 3.7 |
| .FDB | Art Explosion Catalog | 3.7 |
| .MDL | Rational Rose Model File | 3.7 |
| .POTM | Microsoft PowerPoint Macro-Enabled Template | 3.7 |
| .KEYCHAIN | Mac OS X Keychain File | 3.7 |
| .RBT | LEGO MINDSTORMS NXT Program | 3.6 |
| .RSC | Symbian Application Compiled Resource File | 3.6 |
| .3DR | 3DMark Results File | 3.6 |
| .UCCAPILOG | Microsoft UCC API Log File | 3.6 |
| .PFC | AOL Personal Filing Cabinet | 3.6 |
| .PTF | Scrapbook Flair Template | 3.6 |
| .SDF | Structure Data File | 3.6 |
| .FDB | Portfolio Catalog | 3.6 |
| .LIB | Generic Data Library | 3.6 |
| .L6T | Line 6 Tone File | 3.6 |
| .DSZ | Orchida (OES) Embroidery File | 3.6 |
| .PPF | Edgecam Pathtrace Part File | 3.6 |
| .BVP | VodaHost BlueVoda Project File | 3.6 |
| .HST | History File | 3.6 |
| .H12 | At Home Canada 2012 Tax Return | 3.6 |
| .RFO | RoboForm Option File | 3.6 |
| .MBG | Microsoft Mailbag | 3.6 |
| .DPN | Depiction Data File | 3.6 |
| .PJ2 | xPlan Document | 3.6 |
| .WDF | Workshare Compare DeltaFile | 3.6 |
| .KEY | Apple Keynote Presentation | 3.6 |
| .PDB | Protein Data Bank File | 3.6 |
| .BOX | E-mail Mailbox | 3.6 |
| .IN | Input File | 3.6 |
| .XLT | Microsoft Excel Spreadsheet Template (Legacy) | 3.6 |
| .CRTX | Office 2007 Chart Template File | 3.6 |
| .BCM | Business Contact Manager File | 3.6 |
| .IDX | Navigation POI File | 3.6 |
| .CMA | Coach Activity File | 3.6 |
| .GEDCOM | GEDCOM Genealogy File | 3.6 |
| .OTP | OpenDocument Presentation Template | 3.6 |
| .PPSX | Microsoft PowerPoint Slide Show | 3.6 |
| .XML | XML File | 3.6 |
| .PKT | Packet Tracer Network Simulation Model | 3.6 |
| .RET | BusinessObjects Template | 3.6 |
| .VDB | Symantec Virus Database File | 3.6 |
| .QVW | QlikView Document | 3.6 |
| .RVT | Revit Project File | 3.6 |
| .FOX | InfoZoom Data File | 3.5 |
| .MMP | Master Album Maker Project | 3.5 |
| .NOTEBOOK | SMART Notebook File | 3.5 |
| .SLX | MathWorks Simulink Model File | 3.5 |
| .SAV | SPSS Data File | 3.5 |
| .BGL | Babylon Glossary File | 3.5 |
| .TSV | Tab-Separated Values File | 3.5 |
| .USR | SmartMusic Custom File | 3.5 |
| .OBJ | Relocatable Object Code | 3.5 |
| .XFD | XFD File | 3.5 |
| .OEACCOUNT | Windows Mail Account File | 3.5 |
| .TRD | TrID Definitions Package | 3.5 |
| .GRV | Office Groove File | 3.5 |
| .BCI | Belarc Advisor Report File | 3.5 |
| .II | IconWorkshop Extended Information File | 3.5 |
| .DVDPROJ | iDVD Project File | 3.5 |
| .AW | Answer Wizard File | 3.5 |
| .ABY | AOL Address Book File | 3.5 |
| .HDA | HotDocs Auto-Assemble File | 3.5 |
| .EV | Echoview File | 3.5 |
| .DSY | Directory Synchronizer Project File | 3.5 |
| .RCG | Recog Character Recognition Set | 3.5 |
| .SVF | Serial Vector Format File | 3.5 |
| .SEN | SenTest Data File | 3.5 |
| .T18 | H&R Block 2018 Tax Return | 3.5 |
| .MNC | My Notes Center Notebook | 3.5 |
| .PRO6PLX | ProPresenter 6 Playlist Bundle | 3.5 |
| .XPT | SAS Transport File | 3.5 |
| .DFPROJ | DVD Flick Project | 3.5 |
| .PDX | Product Data eXchange File | 3.5 |
| .LMX | Landmark Exchange File | 3.5 |
| .SLP | Sisulizer Project File | 3.5 |
| .FOB | Dynamics NAV Object Container File | 3.5 |
| .I5Z | IUCLID 5 Import/Export File | 3.5 |
| .PKS | Oracle Package Spec File | 3.5 |
| .MPKT | MOPEKS Trial File | 3.5 |
| .MNO | Macromedia Design Note | 3.5 |
| .SC45 | SuperCard Project File | 3.5 |
| .GWK | GraphiCode PCB Job File | 3.5 |
| .RPT | Crystal Reports File | 3.5 |
| .MPP | Microsoft Project File | 3.5 |
| .ONE | OneNote Document | 3.5 |
| .PAF | Personal Ancestral File | 3.5 |
| .VOI | VOI Group File | 3.4 |
| .MOHO | Moho Animation Project | 3.4 |
| .QDF | Quicken Data File | 3.4 |
| .KPF | Komodo Project File | 3.4 |
| .PPTM | Microsoft PowerPoint Macro-Enabled Presentation | 3.4 |
| .FLP | ActivPrimary Flipchart File | 3.4 |
| .PKB | Oracle Package Body File | 3.4 |
| .OFC | Open Financial Connectivity File | 3.4 |
| .MOX | ExtendSim Simulation Software Model | 3.4 |
| .TRA | WinTrack Railroad Track File | 3.4 |
| .EXIF | Exchangeable Image Information File | 3.4 |
| .OFT | Outlook File Template | 3.4 |
| .SPS | SPSS Program File | 3.4 |
| .VCF | vCard File | 3.4 |
| .ANME | Anime Studio Document | 3.4 |
| .IBA | iBooks Author Document | 3.4 |
| .MJK | Question File | 3.4 |
| .LVM | LabVIEW Measurement File | 3.4 |
| .XLC | Microsoft Excel Chart | 3.4 |
| .FFWP | FormsForWeb Packet | 3.4 |
| .EFX | eFax Document | 3.4 |
| .SEO | SEO Note File | 3.4 |
| .PDS | Planetary Data System File | 3.4 |
| .OFX | Open Financial Exchange File | 3.4 |
| .GBR | Gerber File | 3.4 |
| .LBL | NiceLabel Template File | 3.4 |
| .STM | Exchange Streaming Media File | 3.4 |
| .WINDOWSLIVECONTACT | Windows Live Contacts File | 3.4 |
| .EMB | Wilcom Embroidery Design File | 3.4 |
| .AAE | Sidecar Image Edit File | 3.3 |
| .RTE | Revit Project Template | 3.3 |
| .QB2013 | QuickBooks 2013 File | 3.3 |
| .GRK | Gradekeeper Class Gradebook File | 3.3 |
| .HL | HeuristicLab Storage File | 3.3 |
| .ENEX | Evernote Archive | 3.3 |
| .FMAT | FMAT Runfile | 3.3 |
| .T07 | TaxCut 2007 Tax Return | 3.3 |
| .PDAS | PDAStore Data Store File | 3.3 |
| .T13 | H&R Block 2013 Tax Return | 3.3 |
| .ASND | Adobe Sound Document | 3.3 |
| .MYI | MySQL MyISAM Index File | 3.3 |
| .QUICKEN2017 | Quicken 2017 Data File | 3.3 |
| .QB2011 | QuickBooks 2011 File | 3.3 |
| .GDT | gretl Datafile | 3.3 |
| .WGT | IMPS Data File | 3.3 |
| .TRS | WinTrack Railroad Track Text File | 3.3 |
| .PTZ | E-Transcript Bundle File | 3.3 |
| .CSV | Comma-Separated Values File | 3.3 |
| .PST | Outlook Personal Information Store | 3.3 |
| .JRPRINT | JasperReports Print File | 3.3 |
| .RPP | REAPER Project File | 3.3 |
| .TAX2018 | TurboTax 2018 Tax Return | 3.3 |
| .GCW | Microsoft Mathematics Worksheet | 3.3 |
| .WPC | WordPad Converter File | 3.3 |
| .PXL | Pocket Excel File | 3.3 |
| .XRDML | XRDML Data File | 3.3 |
| .NPL | Nokia Playlist File | 3.3 |
| .CELTX | Celtx Project File | 3.3 |
| .POTX | Microsoft PowerPoint Presentation Template | 3.3 |
| .XSL | XML Stylesheet | 3.3 |
| .SLK | Symbolic Link File | 3.3 |
| .T19 | H&R Block 2019 Tax Return | 3.3 |
| .XMCD | Mathcad Worksheet File | 3.3 |
| .CLG | Collage Maker Project File | 3.3 |
| .PMO | Broderbund Print Meta Object File | 3.3 |
| .OMP | Office Manager Document Archive | 3.3 |
| .LP7 | LP7 Digitally Signed File | 3.3 |
| .PXJ | RecordNow Project | 3.3 |
| .GS | GemStone Document | 3.2 |
| .XPG | Autoplay Media Studio Exported Page | 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 |
| .IDX | HMI Historical Log Index File | 3.2 |
| .FPSL | FileMaker Pro Snapshot Link | 3.2 |
| .VXML | VoiceXML File | 3.2 |
| .KPZ | Komodo Template File | 3.2 |
| .CVN | CineVision Encoding Session | 3.2 |
| .TAX2015 | TurboTax 2015 Tax Return | 3.2 |
| .TDT | THOR Data Tree File | 3.2 |
| .TB | Tabbery Tab File | 3.2 |
| .MDSX | MEGA Saved Session | 3.2 |
| .CDF | Common Data Format | 3.2 |
| .PRJ | Project File | 3.2 |
| .TBK | ToolBook File | 3.2 |
| .VCE | Visual CertExam Exam File | 3.2 |
| .GED | GEDCOM Genealogy Data File | 3.2 |
| .LSF | Logos Library System File | 3.2 |
| .WB3 | Corel Quattro Pro 7 and 8 File | 3.2 |
| .TPF | Transit NXT Pack Translation File | 3.2 |
| .STYKZ | Stykz Animation | 3.2 |
| .ER1 | ERWin Entity Relationship Diagram | 3.2 |
| .CAP | Packet Capture File | 3.2 |
| .VCD | Value Change Dump File | 3.2 |
| .TAX2017 | TurboTax 2017 Tax Return | 3.2 |
| .SIM | SAP Tutor File | 3.2 |
| .TEF | TablEdit Tablature | 3.1 |
| .DAM | DeltaMaster Analysis Model | 3.1 |
| .QB2014 | QuickBooks 2014 File | 3.1 |
| .FXP | Adobe Flex Project File | 3.1 |
| .TWB | Tableau Workbook File | 3.1 |
| .OUT | Output File | 3.1 |
| .RTE | Navigation Route | 3.1 |
| .ADCP | Adobe Device Central Project File | 3.1 |
| .INX | Compiled Script | 3.1 |
| .MDJ | StarUML Model File | 3.1 |
| .TAX2013 | TurboTax 2013 Tax Return | 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 |
| .DCM | DiskCatalogMaker Catalog | 3.1 |
| .TE3 | WinTrack Object File | 3.0 |
| .QMTF | Quicken Mac Transfer File | 3.0 |
| .PD5 | Windows Live Photo Gallery Information File | 3.0 |
| .XDB | Symantec Virus Database File | 3.0 |
| .TAX2008 | TurboTax 2008 Tax Return | 3.0 |
| .OTL | NoteTab Outline File | 3.0 |
| .TDM | LabVIEW Binary Measurement File | 3.0 |
| .DSB | Wondershare DVD Slideshow Builder Project | 3.0 |
| .EPF | Edgecam Educational Part File | 3.0 |
| .ROU | Gerber Route File | 3.0 |
| .ID2 | Windows Live Messenger Emoticon File | 3.0 |
| .SDP | Session Description Protocol File | 3.0 |
| .XSLT | Extensible Stylesheet Language Transformations File | 3.0 |
| .JDB | Symantec Endpoint Protection Update File | 3.0 |
| .PD4 | Windows Live Photo Gallery Information File | 3.0 |
| .T06 | TaxCut 2006 Tax Return | 3.0 |
| .MEX | Macro Express File | 3.0 |
| .XRP | RationalPlan Project File | 3.0 |
| .T11 | At Home 2011 Tax Return | 3.0 |
| .XPJ | RoboHelp HTML Project File | 3.0 |
| .GNO | GenoPro Genealogy Tree File | 3.0 |
| .T08 | TaxCut 2008 Tax Return | 3.0 |
| .IMA | Sage ACT! Email Message | 3.0 |
| .T16 | H&R Block 2016 Tax Return | 3.0 |
| .VRD | Visio Report Definition File | 3.0 |
| .RNQ | Renque Model File | 3.0 |
| .PSPD | PhotoSuite 5 Project File | 3.0 |
| .PTN | PaperPort Thumbnail File | 3.0 |
| .CNA | Catena Project File | 3.0 |
| .XFO | XSL-FO Formatted Form | 3.0 |
| .SAR | Sibelius Arrange Style | 3.0 |
| .WGT | XNBC Synaptic Weights File | 3.0 |
| .DII | Summation Batch Load File | 3.0 |
| .PPF | Transit NXT Pack Project File | 3.0 |
| .SCD | TurboTax Tax Schedule List | 3.0 |
| .DAS | DeltaMaster Analysis Session | 3.0 |
| .PKH | Oracle Package File | 3.0 |
| .WCD | Works Calendar File | 3.0 |
| .BRW | Calyx Point Borrower File | 3.0 |
| .XMLPER | LeCroy Binary Waveform File | 3.0 |
| .OR6 | Lotus Organizer 6 File | 3.0 |
| .WEA | Ecotect Weather File | 3.0 |
| .ITX | FileNet eForms Designer Template | 3.0 |
| .SQD | SQ Data File | 3.0 |
| .HS2 | HyperRESEARCH 2 Study File | 3.0 |
| .LIX | Logos Library System File | 3.0 |
| .NPT | Portfolio NetPublish Template | 3.0 |
| .FOP | InfoZoom Protected Data File | 3.0 |
| .ULF | Universal List File | 3.0 |
| .MMP | MindManager Mind Map | 3.0 |
| .QIF | Quicken Interchange Format File | 3.0 |
| .PCAPNG | Pcap-NG Packet Capture File | 3.0 |
| .SPV | SPSS Output Document | 3.0 |
| .QBW | QuickBooks for Windows Company File | 3.0 |
| .XFDF | Adobe Acrobat XFDF File | 2.9 |
| .MCDX | Mathcad Prime Document | 2.9 |
| .CTF | WhereIsIt Catalog | 2.9 |
| .IES | IES Photometric Data File | 2.9 |
| .MCD | Mathcad Document | 2.9 |
| .QFX | Quicken Financial Exchange File | 2.9 |
| .GAN | GanttProject Project File | 2.9 |
| .POD | OpenProj Project File | 2.9 |
| .STA | ABAQUS Status File | 2.9 |
| .MAT | MATLAB MAT-file | 2.9 |
| .TAX2019 | TurboTax 2019 Tax Return | 2.9 |
| .MMF | Meal-Master Recipe File | 2.9 |
| .MDC | Multi Dimension Cube File | 2.8 |
| .DBD | DemoShield Project | 2.8 |
| .VDX | Microsoft Visio XML Drawing | 2.8 |
| .DAL | DVD-lab Project File | 2.8 |
| .NP | Portfolio NetPublish File | 2.8 |
| .NDK | Lotus Notes Design Elements File | 2.8 |
| .PHM | Pro Home Manager Data File | 2.8 |
| .FTW | Family Tree Maker File | 2.8 |
| .TAX2011 | TurboTax 2011 Tax Return | 2.8 |
| .TT10 | TurboTax Canada 2010 Tax Return | 2.8 |
| .EXP | Export File | 2.8 |
| .FMC | FormConnect Form File | 2.8 |
| .MW | Maple Worksheet | 2.7 |
| .PNPROJ | Programmer's Notepad Project File | 2.7 |
| .HML | HostMonitor TestList File | 2.7 |
| .ITMSP | iTunes Store Package | 2.7 |
| .MBX | Outlook Express Mailbox | 2.7 |
| .SLE | Sisulizer Package File | 2.6 |
| .SHW | Corel Presentation | 2.6 |
| .MWS | Maple Classic Worksheet | 2.6 |
| .MTW | Minitab Worksheet File | 2.6 |
| .ESX | Xactimate Insurance Claims Estimate | 2.6 |
| .VI | LabVIEW Virtual Instrument File | 2.6 |
| .EPW | EnergyPlus Weather Data File | 2.5 |
| .PJM | xPlan Model | 2.5 |
| .FLO | iGrafx FlowCharter File | 2.5 |
| .BCC | Calendar Creator File | 2.5 |
| .CLM | MagicJack Call Log File | 2.5 |
| .IGC | Anime List Builder Input File | 2.5 |
| .T09 | At Home 2009 Tax Return | 2.5 |
| .QB2012 | QuickBooks 2012 File | 2.5 |
| .SGML | Standard Generalized Markup Language File | 2.5 |
| .GRR | Gradekeeper Class Roster File | 2.5 |
| .XDNA | DNA Strider Sequence File | 2.5 |
| .NPR | Nuendo Project File | 2.5 |
| .ROD | Actuate Report Object Design File | 2.5 |
| .TT12 | TurboTax Canada 2012 Tax Return | 2.5 |
| .LIVEUPDATE | Symantec LiveUpdate File | 2.5 |
| .KPP | Kid Pix Presentation | 2.5 |
| .DDC | DivX Descriptor File | 2.5 |
| .QDP | Quick and Dandy Plotter File | 2.5 |
| .PXF | Transit XV Pack Project File | 2.4 |
| .GC | GraphClick File | 2.4 |
| .DDCX | DivX Descriptor 2 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 |
| .IXB | Ulead Disc Image | 2.3 |
| .KPX | Kid Pix Picture | 2.3 |
| .OPX | FlipAlbum Photo Album File | 2.3 |
| .WNK | Wink Presentation | 2.3 |
| .CSA | PNA Code Calset File | 2.3 |
| .LSL | LightScribe Label | 2.3 |
| .DMSP | PhotoSuite Project File | 2.3 |
| .ULZ | USBlyzer Data Capture File | 2.2 |
| .QB2009 | QuickBooks 2009 File | 2.2 |
| .TDA | Palm To-Do File | 2.2 |
| .OND | Lotus Notes Encapsulated Memo File | 2.2 |
| .FHC | FHC Data File | 2.1 |
| .TFA | TreeSoft CashFlow Analysis Data File | 2.1 |
| .TPB | GROMACS Binary Input File | 2.0 |
| .SPUB | Disc Cover File | 2.0 |
| .TDA | Java Application Thread Dump | 2.0 |
| .TKFL | TKLinks Saver Favorite Links | 2.0 |
| .MBG | Mailbag Assistant Mailbox File | 2.0 |
| .TET | Textease CT Template | 2.0 |
| .XPJ | Micro Planner X-Pert Project File | 2.0 |
| .LIX | ExtendSim Simulation Software Library | 2.0 |
| .TT13 | TurboTax Canada 2013 Tax Return | 2.0 |
| .CTM | CrazyTalk Model File | 2.0 |
| .SWK | StudyWorks Save File | 2.0 |
| .BLB | Blob Data File | 2.0 |
| .FO | XSL-FO Form | 2.0 |
| .STP | Analysis Studio Project Information File | 1.9 |
| .TXF | Tax Exchange Format | 1.8 |
| .SBX | ESRI Spatial Index File | 1.8 |
| .LW4 | Lightwright File | 1.7 |
| .AWG | Activeworlds Object Group File | 1.7 |
| .ITM | iThink Model File | 1.7 |
| .WB2 | Corel Quattro Pro File | 1.5 |
| .IVT | Beyond 20/20 Table File | 1.5 |
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