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Website  EXT   Filetype description                                    
    Wikipedia  ACCDA  Data - MS Access Database Wizard (Open XML) 
    Wikipedia  ACCDB  Data - MS Access Database (Open XML) 
    Wikipedia  ACCDE  Data - MS Access Database Wizard (Open XML) 
    File Extensions  ACCDR  Access 2007 file that enables you to open a database in runtime mode 
    Wikipedia  ACCDT  Data - MS Access Database Template (Open XML) 
    Wikipedia  ACCDU  Data - MS Access Database Wizard (Open XML) 
    FILExt  APK  Android Package (Open Handset Alliance) 
    File Extensions  APPLOCALIZE  AppLocalize.Document open with: APPLOCalize.exe 
    FILExt  BREP  Open CASCADE 3D Model File (Open CASCADE Company) 
    File Extensions  CGFILETYPETEST  CGFileType Document open with: CGFILETYPE.EXE 
    FILExt  CMP  Open Access File 
    File Extensions  CMP  Open Access File 
    FILExt  CSFDB  Open CASCADE 3D Model File (Open CASCADE Company) 
    File Extensions  CXI  cxifile open with: CXIE.EXE /t 
    FILExt  DOCM  Word Microsoft Office Open XML Format Document with Macros Enabled (Microsoft Corporation) 
    FileInfo  DOCX  Microsoft Word Open XML Document 
    FILExt  DOCX  Word Microsoft Office Open XML Format Document (Microsoft Corporation) 
    TrID  DOCX  Word Microsoft Office Open XML Format document 
 Header Hexdump:  50 4B 03 04 
    FILExt  DOCXENX  egis Encrypted Word Open XML DOCX File (HiTRUST Inc.) 
    File Extensions  DOCXENX  Egis encrypted Word Open XML DOCX file 
    FILExt  DR  Open Digital Rights Language (ODRL International Advisory Board) 
    TrID  DR  Open Digital Rights Language 
 Header Hexdump:  3C 
    FILExt  DRF  Hummingbird DOCS Open PowerDOCS DM 
    File Extensions  DWI  dwifile open with: DEPENDS.EXE /dde 
    FILExt  E2P  PonyProg Device File (Lanconelli Open Systems) 
    FILExt  EPUB  Open Publication Structure eBook (International Digital Publishing Forum (IDPF)) 
    TrID  EPUB  Open Publication Structure eBook 
 Header Hexdump:  50 4B 03 04 
    FILExt  FILMAO  Aleph One Film (Marathon Open Source) 
    FILExt  FLD  WinFlash Educator Flashcard Options/Statistics File (Open Window Software) 
    FILExt  FLS  WinFlash Educator Flashcard Source File (Open Window Software) 
    File Extensions  FLT  MultiGen Open FLighT file 
    FILExt  FLT  WinFlash Educator Flashcard Compiled Test File (Open Window Software) 
    FILExt  FLU  WinFlash Educator Ver 10 Unicode Source File (Open Window Software) 
    FILExt  FLZ  WinFlash Educator Flashcard Compiled Study File (Open Window Software) 
    FILExt  FMD  Open Access File 
    File Extensions  FMD  Open Access File 
    File Extensions  FOLDER  Folder file open with: Explorer.exe /idlist 
    FILExt  GRAFSAO  Aleph One Shapes (Marathon Open Source) 
    File Extensions  GRS  grsfile open with: GetRightgetright.exe 
    FILExt  GXW  GRASS GIS Workspace Layout Definition (Open Source Geospatial Foundation) 
    File Extensions  HTW  htmlfile open with: Internet Explorer -nohome 
    FILExt  IMGSAO  Aleph One Images (Marathon Open Source) 
    FILExt  INVENTOR  Open Inventor File Translator How To [SGI] 
    File Extensions  INVENTOR  SGI Open Inventor: Open Inventor File Translator 
    File Extensions  ITSS  MS-ITSS File open with: Internet Explorer -nohome ms-itss 
    FILExt  IV  Open Inventor (Silicon Graphics Inc.) 
    TrID  IV  SGI Open Inventor file 
 Header Hexdump:  23 49 6E 76 65 6E 74 6F 72 20 56 
    File Extensions  IXI  AlephOne.Document open with: ALEPHOne.EXE /dde 
    FILExt  LXL  LPEX File Open Command Profile 
    FILExt  MAPSAO  Aleph One Maps (Marathon Open Source) 
    FILExt  MEB  Open eBook (International Digital Publishing Forum) 
    TrID  MEB  Open eBook 
 Header Hexdump:  56 4E 4D 45 42 4F 4F 4B 
    FILExt  MMI  Memo Open Client 
    FILExt  MML  Aleph One Marathon Markup Language (Marathon Open Source) 
    File Extensions  MSRCINCIDENT  MsRcIncident open with: HelpCtr.exe 
    File Extensions  MXP  Macromedia.Extension.Package open with: Macromedia Extension Manager.exe 
    File Extensions  NMW  T126_Whiteboard open with: NetMeeting wb32.exe 
    TrID  NUT  NUT Open Container Format 
 Header Hexdump:  6E 75 74 2F 6D 75 6C 74 69 6D 65 64 69 61 20 63  
    FILExt  NUT  NUT Open Container 
    FileInfo  ODF  Open Document File 
    FILExt  ODF  Open Document Interchange (ODIF) 
    File Extensions  ODF  Open Document Interchange Format (ODIF) 
    FileInfo  ODIF  Open Document Interchange Format 
    FILExt  ODIF  Open Document Interchange Format 
    File Extensions  ODIF  Open Document Interchange Format 
    Wikipedia  ODIF  Open Document Interchange Format 
    FILExt  OEB  Open eBook Document (International Digital Publishing Forum (IDPF)) 
    Cryer  OEB  Open eBook file 
    FileInfo  OFC  Open Financial Connectivity File 
    FILExt  OFC  Open Financial Connectivity File 
    File Extensions  OFC  Open financial connectivity file 
    TrID  OFC  Open Financial Connectivity file 
 Header Hexdump:  3C 4F 46 43 3E 
    FileInfo  OFX  Open Financial Exchange File 
    FILExt  OFX  Open Financial Exchange File 
    File Extensions  OFX  Open financial exchange file 
    File Extensions  OIL  Open Image Library Format image format 
    FILExt  OIL  Open Image Library Format 
    FILExt  OMF  Open Media Format File 
    FileInfo  OMF  Open Media Framework File 
    FILExt  ONF  Open Navigation Format File 
    FILExt  ORD  Open Reminder Database (ITOpen.eu SOFTWARE) 
    FILExt  OSD  Open Software Description File (Microsoft Corporation) 
    File Extensions  OSD  Open software description file 
    File Extensions  OTF  Open type font file format 
    FILExt  OTF  Open Type Font Format 
    File Extensions  OTSL  Open Transport Library 
    FILExt  OUV  Sphinx Open Ended Responses (Le Sphinx Développement) 
    File Extensions  PHP_AUTHALPH  php authalph auto file open with Internet Explorer 
    FILExt  PHYSAO  Aleph One Physics Model (Marathon Open Source) 
    File Extensions  PIE  Pie.Application open with: PIE.EXE 
    FILExt  PNZ  Panorama Shortcut to Open Multiple Databases (ProVUE Development) 
    FILExt  POTM  Power Point Microsoft Office Open XML Format Presentation Template with Macros Enabled (Microsoft Corporation) 
    FILExt  POTX  Power Point Microsoft Office Open XML Format Presentation Template (Microsoft Corporation) 
    FileInfo  POTX  PowerPoint Open XML Presentation Template 
    FILExt  PPSM  Power Point Microsoft Office Open XML Format Presentation Slide Show with Macros Enabled (Microsoft Corporation) 
    FILExt  PPSX  Power Point Microsoft Office Open XML Format Presentation Slide Show (Microsoft Corporation) 
    FileInfo  PPSX  PowerPoint Open XML Slide Show 
    FILExt  PPSXENX  egis Encrypted Powerpoint Open XML PPSX File (HiTRUST Inc.) 
    File Extensions  PPSXENX  Egis encrypted Powerpoint Open XML PPSX file 
    FILExt  PPTM  Power Point Microsoft Office Open XML Format Presentation with Macros Enabled (Microsoft Corporation) 
    TrID  PPTM  PowerPoint Microsoft Office Open XML Format document 
 Header Hexdump:  50 4B 03 04 
    FileInfo  PPTX  Microsoft PowerPoint Open XML Document 
    FILExt  PPTX  Power Point Microsoft Office Open XML Format Presentation (Microsoft Corporation) 
    TrID  PPTX  PowerPoint Microsoft Office Open XML Format document 
 Header Hexdump:  50 4B 03 04 
    FILExt  PPTXENX  egis Encrypted Powerpoint Open XML PPTX File (HiTRUST Inc.) 
    File Extensions  PPTXENX  Egis encrypted Powerpoint Open XML PPTX file 
    File Extensions  PYO  Python Compiled File open with: python.exe 
    File Extensions  PYW  Python NoCon File open with: pythonw.exe 
    File Extensions  QDS  SavedDsQuery open with: rundll32 dsquery.dll OpenSavedDsQuery 
    File Extensions  RGN  DDTitle.Project open with: DDTITLE 
    FILExt  RMP  Open Workbench Project File (Sponsored by CA's Clarity Division (formerly Niku)) 
    FILExt  SAVGAO  Aleph One Saved Game (Marathon Open Source) 
    File Extensions  SBBUGREPORT  SBBugReport.Document open with: APPLOCalize.EXE 
    File Extensions  SBGLOSSARY  SBGlossary.Document open with: APPLOCalize.EXE 
    File Extensions  SCB  Scribble.Document open with: SCRIBBLE.EXE /dde 
    FILExt  SNDSAO  Aleph One Sounds (Marathon Open Source) 
    Cryer  STC  Open Office Calc template file 
    Cryer  STD  Open Office Draw template file 
    Cryer  STI  Open Office Impress template file 
    FILExt  STL  EBU-standard Open and Teletext File (SoftNI Corporation) 
    Cryer  SXC  Open Office Calc file 
    Cryer  SXD  Open Office Draw file 
    Cryer  SXG  Open Office master document 
    Cryer  SXI  Open Office Impress file 
    Cryer  SXM  Open Office Math file 
    Cryer  SXP  Open Office Presentation file 
    Cryer  SXW  Open Office Writer document 
    FILExt  TAXX  Dr. Tax Open XML Format (Ringler Informatik AG) 
    FILExt  TUNEAO  Aleph One Music (Marathon Open Source) 
    File Extensions  UDT  UDTDemo.Document open with: UDTDEMO.EXE /dde 
    File Extensions  WEBPNP  webpnpFile open with: wpnpinst.exe 
    File Extensions  WHTT  WinHTTrackProject open with: WINHTTrack.EXE 
    Wikipedia  WRS  Windows Resource eg. might indicate error if word cannot open - WordPerfect for Win 
    File Extensions  XEN  Xenu Document open with: XENU.EXE 
    TrID  XLSX  Excel Microsoft Office Open XML Format document 
 Header Hexdump:  50 4B 03 04 
    FILExt  XLSX  Excel Microsoft Office Open XML Format Spreadsheet (Microsoft Corporation) 
    FileInfo  XLSX  Microsoft Excel Open XML Document 
    FILExt  XLSXENX  egis Encrypted Excel Open XML XLSX File (HiTRUST Inc.) 
    File Extensions  XLSXENX  Egis encrypted Excel Open XML XLSX file 
    File Extensions  XMT  XMT_auto_file open with: TriSpect.exe 

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