since 2000
Alphabetic File Extension List: x
The file extension list you requested is shown on this page. It loads as a table so please give it a moment as some of the lists are quite long. These lists contain basic information: the extension, the name of the program it works with, the specific function of the file, and the company that makes the program. Not all extensions have all of the data. Click on the extension of interest to see the detail page for that extension. Total extensions in this particular list: 666.
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| Extension | Information |
| X | Amapi 3D model (Smith and Micro) |
| X | AVS bitmap (Stardent) |
| X | DirectX 3D object (Microsoft) |
| X | FPS Creator 3D model (The Game Creators) |
| X | LEX program source code (Mike Lesk and Eric Schmidt) |
| X | REXX script (IBM) |
| X | SuperDisk self-extracting archive (Alysis) |
| X | XBLite program source code (David Szafranski) |
| X | Xview 3D object (Oracle) |
| X-VCARD | Apple Contacts Digital business card |
| X-ZIP-COMPRESSED | macOS Finder Compressed archive |
| X006 | 7-Zip Split archive part |
| X01 | Paradox Secondary Index |
| X02 | Paradox Secondary Index |
| X03 | Paradox Secondary Index |
| X04 | Paradox Secondary Index |
| X05 | Paradox Secondary Index |
| X06 | Paradox Secondary Index |
| X07 | Paradox Secondary Index |
| X08 | Paradox Secondary Index |
| X09 | Paradox Secondary Index |
| X1 | X1 Desktop Search Saved Search File (X1 Technologies, Inc.) |
| X10 | X Window Dump Bitmap |
| X11 | X Windows System Window Dump Bitmap |
| X12 | ASC X12 Standards Electronic Data Interchange file (Accredited Standards Committee X12) |
| X13 | Hooligans |
| X16 | Macromedia Program Extension |
| X18 | Trimble Business Center Trimble GPS Data |
| X22 | X22 Converter AIS ship data |
| X23 | Leica Geo Office Leica total station data |
| X2M | Dragon Ball Xenoverse 2 Game Modification |
| X32 | Macromedia Program Extension (Macromedia) |
| X3D | 3D Maker 3D design project (Xara) |
| X3D | Blender 3D scene (Blender) |
| X3D | X3D-Edit 3D scene (NPS) |
| X3DB | X3D Binary Format File (Web3D Consortium) |
| X3DBZ | X3D GZipped Binary Format File (Web3D Consortium) |
| X3DV | X3D Classic VRML File (Web3D Consortium) |
| X3DVZ | X3D GZipped Classic VRML File (Web3D Consortium) |
| X3F | Sigma Camera RAW Picture File (Sigma) |
| X3G | PRINT 3D print data (MakerBot) |
| X4M | TeamLinks Mail File Data |
| X5 | Rockwell Software Logix 5 File |
| X64 | C64 Emulator Disk Image |
| X64 | Music Modding background music |
| X81 | German construction tender software construction tender data |
| X83 | GAEB 2000 XML and DA XML File (Bundesamt für Bauwesen und Raumordnung) |
| X86 | Linux executable (Linux Foundation) |
| X86 | Office dynamic link library (Microsoft) |
| X86_64 | Linux operating system (64-bit) Execute programs |
| XA | Extended Architecture File |
| XA | Gear CD Suite File |
| XA | Playstation Video (Sony Corporation of America) |
| XA | The Sims Extensive Audio (Electronic Arts (Maxis)) |
| XA2 | Exam Editor Question Groups (Nice Productions) |
| XAB | Mail Address Book (Microsoft Corporation) |
| XAB | Xenis Mail Address Book |
| XAC | GNUCash GNUCash Backup File (The GNUCash Project) |
| XACT | XactScript File (XactCommerce) |
| XAD | eXotic AdLib Format |
| XADES | XAdES Signer XML Digital Signature |
| XADML | XML-based Application Description Information |
| XAF | 3DS Max 3D biped's skeletal and motion data (Autodesk) |
| XAF | Affirm Transcript Editor witness's testimony transcript (Web Depo) |
| XAF | Cal3DViewer 3D biped's skeletal and motion data (Cal3DViewer Developer Community) |
| XAF | DirectX 3D virtual world (Microsoft) |
| XAF | IMVU 3D animation (IMVU) |
| XAML | Visual Studio graphical object (Microsoft) |
| XAN | XANIA Browser |
| XAN | xyALGEBRA File |
| XAP | DirectX SDK project (Microsoft) |
| XAP | ONEt+ application (Elonex) |
| XAP | Silverlight application package (Microsoft) |
| XAP | Xbox dashboard script (Microsoft) |
| XAPK | APKPure installation package (APKPure) |
| XAPK | Pure APK installation package (APKPure) |
| XAR | Excel Excel auto-recovery file (Microsoft) |
| XAR | eXtensible ARchiver compressed archive file (Rob Braun, Landon Fuller, David Leimbach, Kevin Van Vechten) |
| XAR | Xara Photo & Graphic Designer vector image (Xara) |
| XARC | The Longest Journey Sound File (Funcom) |
| XAS | Playstation Video (Sony Corporation of America) |
| XB | Xbox 360 games, qpress, XBrowser Game data, backups |
| XBA | Timespace X200/K200 Digital Video Recorder Video File (Timespace Technology Ltd.) |
| XBA | xBase Website Code (Mauricio Fragoso) |
| XBAP | Silverlight Application Package (Microsoft Corporation) |
| XBE | Xbox game executable (Microsoft) |
| XBEL | XML Bookmark Exchange Language (XBEL) File (SIG for XML Processing in Python) |
| XBF | Database File |
| XBF | Emperor Battle for Dune |
| XBIN | RegSupreme License File (Macecraft Software) |
| XBK | SMART Board image backup file (SMART Technologies ULC) |
| XBK | Xenserver server backup file (Citrix Systems, Inc.) |
| XBL | Extensible Binding Language |
| XBL | XBLite Program File |
| XBM | The Witcher 3: Wild Hunt texture (CD Projekt) |
| XBM | XnView image (XnSoft) |
| XBP | XBWML X-Bite.co.uk Markup Language (X-Bite.co.uk) |
| XBS | ETAK MapBase |
| XBT | Far Cry 5 Texture File |
| XBW | Crossword |
| XBX | XBox Image File (Microsoft Corporation) |
| XB~ | IC File |
| XC | X Server Constant Screen Image Bitmap |
| XC2 | HPXView DACCS Configuration (Haliplex Communication Systems) |
| XCARCHIVE | Xcode iOS App Archive |
| XCD | WarpIN CID (Configuration, Installation, Distribution) File |
| XCDATAMODEL | Xcode Core Data-based Data Model (Apple Inc.) |
| XCF | Capacitive scanned points (Leica Geosystems) |
| XCF | GIMP image (The GIMP Team) |
| XCF | Seashore image (Robert Engels) |
| XCI | Acrobat font mapping (Adobe) |
| XCI | Switch game (Nintendo) |
| XCI | Vivado IP configuration (Xilinx) |
| XCI | XCI game project data (XCI Developers) |
| XCK | Extended Crack File |
| XCL | Xtree for Win Script |
| XCM | CmapTools Exported Concept Map (IHMC) |
| XCN | HPXView DACCS Configuration (Haliplex Communication Systems) |
| XCODEPROJ | Xcode Project (Apple Inc.) |
| XCP | Xbox Compressed Package (Microsoft Corporation) |
| XCR | Warlords Battlecry (Strategic Studies Group, Pty Ltd.) |
| XCS | BuzzLetter Encrypted Stationery Template (StationeryCentral.com, Inc.) |
| XCT | XVI32 Conversion File (Christian Maas) |
| XCU | OpenOffice.org Extension Control File (OpenOffice.org Community) |
| XCVF | XnView Configuration or Verification |
| XCZ | BuzzLetter Zipped Collection of Encrypted Stationery Templates (StationeryCentral.com, Inc.) |
| XD | Adobe XD Adobe User Interface Design file (Adobe) |
| XD | CCS-lib.2 Examples Motif-CC File |
| XDAL | Hitachi Content Platform HDS Data Log |
| XDB | HyperCD HyperLOCK (John Galt Media, Inc.) |
| XDB | Norton AntiVirus Update File (Symantec Corporation) |
| XDB | xText Compiled Database (Flambeaux Software) |
| XDB0 | X-Ray Engine, S.T.A.L.K.E.R. series Game Data Container |
| XDC | Acrobat Printer Description (Adobe Systems Incorporated) |
| XDC | DarkCrypTC Encrypted File Container (DarkSoftware (Alexander Myasnikov, Kolchugino)) |
| XDD | xfit XDD Format Data File |
| XDE | Tgif-3.0 File |
| XDELTA | Xdelta Binary Differential File |
| XDF | Extended Disk Format Image |
| XDF | Milnta APL Transfer Function |
| XDF | ML R Server binary file for persisted data in R Server (Microsoft) |
| XDF | ProWORX Nxt Extended Memory Data (Schneider Electric) |
| XDF | Workshare Synergy File |
| XDF | X68000 Image File |
| XDF | XDF Viewer Extensible data format for time series |
| XDI | WinArchiver WinArchiver (WinArchiver Computing, Inc.) |
| XDIM | Multi-Channel Server (MCS) Markup Editor XDIME Document (Volantis Systems Ltd.) |
| XDK | XML Development Kit Project (Republicorp Virtual Media) |
| XDL | SQL Server Management Studio deadlock graph (Microsoft) |
| XDL64 | Cinema 4D Cinema 4D plugin |
| XDMZ | Informatica XDM Designer Data Model Export |
| XDO | Oracle BI Publisher Resource Tracking File (Oracle) |
| XDO | OutDo Outline File (Aspevia Systems) |
| XDOZ | Oracle BI Publisher Zipped Oracle Report |
| XDP | Acrobat XML Data Package File (Adobe Systems Incorporated) |
| XDP | Playstation Media Manager For PSP File (Sony Computer Entertainment Inc.) |
| XDP | UNIX File |
| XDQ | Harvest Log File (Hydro-Logic Ltd, Isodaq Division) |
| XDR | BizTalk Server XML-data reduced file (Microsoft) |
| XDR | IDL software external data representation file (L3Harris Geospatial) |
| XDRUID | XDIME Player Skin (Volantis Systems Ltd.) |
| XDRZ | Oracle BI Publisher (now Oracle Analytics Publisher) Report Template |
| XDR_TOR | Insight II Binary Torsion File (Accelrys Software Inc.) |
| XDS | LCDStudio Design (LCDStudio.com) |
| XDS | Nintendo DS Game Maker Project File (Invisionsoft) |
| XDS | OpenGL Performer Script |
| XDS | Symantec Store Download Manager Partial Download (Symantec Corporation) |
| XDS | XDS X-ray Detector Software |
| XDSL | D-Link Router UK Firmware Update File (D-Link Systems, Inc.) |
| XDT | Xscript Data Packet (Codec Games) |
| XDW | APL Transfer Function workspace (Milnta) |
| XDW | DocuWorks scanned document (Fujifilm) |
| XEA | Cryptomax Encrypted Archive (Cryptomax.net) |
| XEB | Apabi eBook |
| XEC | Afaria (XcelleNet) |
| XEE | Expression Encoder Preset File (Microsoft Corporation) |
| XEF | Unity Pro source code file (Unity) |
| XEJ | Expression Encoder Job File (Microsoft Corporation) |
| XEL | Excel extended events (Microsoft) |
| XEL | Expression Encoder live video encoding presets (Microsoft) |
| XEL | SQL Server Mangement Studio extended events (Microsoft) |
| XEM | eManager Metering Unit Credits for File Use (XGenics Ltd.) |
| XEN | Xenu's Link Sleuth Saved Results File (Tilman Hausherr) |
| XEP | eManager File Packing Definition (XGenics Ltd.) |
| XEP | XenoDream Graphics Data (XenoDream Software, LLC.) |
| XER | Primavera Project Management Propriety Exchange Format (Primavera Systems, Inc) |
| XES | eManager XML UI Definition for Skins (XGenics Ltd.) |
| XESC | Expression Encoder screen recording (Microsoft) |
| XESC | Media Player screen recording (Microsoft) |
| XESC | VLC screen recording (VideoLAN) |
| XET | eManager XML Definition of eManager Process (XGenics Ltd.) |
| XEV | eManager XML Autoupdate Definition (X-Genics Ltd) |
| XEX | KERMIT control (Columbia University) |
| XEX | TOS program executable (Atari) |
| XEX | Windows executable (Microsoft) |
| XEX | Xbox 360 executable (Microsoft) |
| XEZ | eManager Template Package (X-Genics Ltd.) |
| XF | XFPlay Encrypted video cache |
| XFB | LonMark Binary Device Interface File Format (LonMark International) |
| XFBIN | Nintendo Switch Games Game Archive |
| XFC | Docuprint N17 Printer Firmware (Xerox) |
| XFC | X-Fonter Font Collection File (Blacksun Software) |
| XFD | Acu4GL Extended File Description (Acucorp, Inc.) |
| XFD | Atari Disk Image (Atari) |
| XFD | XML Form in XFDL Format |
| XFDF | Acrobat Forms Document (Adobe Systems Incorporated) |
| XFDL | Forms Viewer digital form (IBM) |
| XFDL | Notepad digital form (Microsoft) |
| XFDX | xfdx Designer Zipped Web Form |
| XFI | LaTex Figures File |
| XFI | xICE Desktop Encrypted File (Network At Home Enterprises) |
| XFL | Animate movie archive (Adobe) |
| XFL | xICE Desktop encrypted folder (Network At Home) |
| XFM | Audition Transform Effect (Adobe Systems Incorporated) |
| XFM | OmniForm XML Format |
| XFN | Ventura Printer Font |
| XFO | LonMark Optimized Device Interface File (LonMark International) |
| XFR | Symantec Anti-Virus Corporate Version Failed Update (Symantec Corporation) |
| XFR | Ventura Publisher Bitmap Editor Font File |
| XFR | Xfrog Vegetation File (greenworks organic-software) |
| XFS | eRacer Sound File |
| XFS | GunBound (Softnyx) |
| XFS | Wolfteam Game File (Softnyx) |
| XFT | ChiWriter 24 Pin Printer Font |
| XFT | LiveCycle Designer Form (Adobe Systems Incorporated) |
| XFX | Fax File |
| XFXF | Compilers, interpreters, and development tools Storing source code |
| XG | XG Encryption Encryption (Mastermind Technology) |
| XG0 | Database Index; Paradox Secondary Index |
| XG1 | Database Index; Also XG2, XG3... |
| XG1 | Techno Toys XG-909 MIDI Drum Machine File |
| XG2 | Database Index; Also XG3, XG4… |
| XG3 | Database Index; Also XG4, XG5… |
| XG4 | Database Index; Also XG5, XG6… |
| XG5 | Database Index; Also XG6, XG7… |
| XG9 | Techno Toys XG-909 MIDI Drum Machine File |
| XGL | MegaBitz Graphics Language File |
| XGM | Techno Toys XG-909 MIDI Drum Machine File |
| XGO | GeoConcept Add-On (GeoConcept SA) |
| XGO | LogMate for Windows File |
| XGO | Paradox Database-related File |
| XGP | PicturePlayer Password Protected Files (PicturePlayer) |
| XGR | Graph Edit XML Graph (Filter Graph Markup Language) (Microsoft Corporation) |
| XGS | PicturePlayer Scrambled Files (PicturePlayer) |
| XGS | XACT XACT Global Settings (Microsoft Corporation) |
| XGTF | Viper Video Ground Truth |
| XGZ | MegaBitz Vector Drawing |
| XHD | HappyFish XML Data File (ThirstyCrow) |
| XHDML | XML Version of HDML File |
| XHESSIAN | Insight II Hessian File (Accelrys Software Inc.) |
| XHT | Extensible HyperText Markup Language File |
| XHTM | Extensible HyperText Markup Language File |
| XHTML | Acrobat document (Adobe) |
| XHTML | Dreamweaver web page (Adobe) |
| XHTML | Firefox web page (Mozilla) |
| XHTML | Sublime web page (Sublime) |
| XI | eXtended Instrument |
| XI | Fast Tracker 2 Instrument |
| XI | ScreamTracker Instrument File |
| XI1 | Hikvision Player, iVMS-4200 Hikvision Video File |
| XIA | Chiasmus Encrypted File (Bundesamt für Sicherheit in der Informationstechnik) |
| XIB | Xcode user interface resources (Apple) |
| XIF | NodeBuilder device interface (LonMark) |
| XIF | OmniPage scanned/fax document (Kofax) |
| XIF | Wang Tiff Viewer image (Wang) |
| XIM | X11 Xim Toolkit Bitmap |
| XIN | OmniMark Include File (Stilo) |
| XIP | Hotbar web browser extension (Zango) |
| XIP | HP95 Execute-in-place Program |
| XIP | macOS digitally signed compressed archive file (Apple) |
| XIP | Xbox archive file (Microsoft) |
| XISE | Xilinx ISE ISE Project File (XILINX) |
| XIX | IIS NNTP Subject Lists (Microsoft Corporation) |
| XJS | WinExplorer Java Script |
| XJSW | Formulator Tarsia Tarsia puzzle data |
| XJT | Compressed GIMP Image with Properties of GIMP |
| XJTGZ | Compressed GIMP Image with Properties of GIMP |
| XJTZ2 | Compressed GIMP Image with Properties of GIMP |
| XKS | IBM Softcopy Reader PDF Extended Bookshelf File (IBM) |
| XL | Excel Spreadsheet (Microsoft Corporation) |
| XL | Old Amiga Movie Format |
| XL | XBLite Program File |
| XL$ | Modem Bitware Fax Disk2 File |
| XLA | DATAIR DC/401(k) translation table (DATAIR Employee Benefit Systems) |
| XLA | Excel add-in workbook (Microsoft) |
| XLA | Xlib archive (X.Org Foundation) |
| XLAM | Excel add-in workbook (Microsoft) |
| XLAMENX | egis Encrypted XLAM (Excel 2007) File (HiTRUST Inc.) |
| XLB | Excel toolbar settings file (Microsoft) |
| XLC | Excel Chart (Microsoft Corporation) |
| XLD | Excel Dialog (Microsoft Corporation) |
| XLE | Cooktop File |
| XLF | Crystal Xcelsius Visualization (Business Objects SA) |
| XLF | XLIFF Document |
| XLG | AutoCAD XREF Log (Autodesk, Inc.) |
| XLG | Xnetech Engraving Logo File |
| XLGC | ExpressK Database File (Prosystech) |
| XLIB | Cinema 4D Cinema 4D Plugin |
| XLIF | SDL Trados Studio, memoQ, Across Language Server, and other CAT tools Localization Interchange |
| XLK | Excel excel backup file (Microsoft Corporation) |
| XLL | Excel add-in (Microsoft) |
| XLM | Excel macro (Microsoft) |
| XLNK | XML Link File (Tom Arn) |
| XLO | Inventor Export Journal (Autodesk, Inc.) |
| XLOG | XLOG XLOG XML Log (World Wide Web Consortium) |
| XLR | Works spreadsheet/chart (Microsoft) |
| XLS | Calc workbook (Apache) |
| XLS | Excel workbook (Microsoft) |
| XLS | Works workbook (Microsoft) |
| XLS | XnView image (XnSoft) |
| XLSB | Calc workbook (Apache) |
| XLSB | Excel workbook (Microsoft) |
| XLSBENX | egis Encrypted XLSB (Excel 2007) File (HiTRUST Inc.) |
| XLSENX | egis Encrypted Excel XLS File (HiTRUST Inc.) |
| XLSHTML | Excel HTML Document (Microsoft Corporation) |
| XLSM | Excel macro-enabled workbook (Microsoft) |
| XLSMENX | egis Encrypted XLSM (Excel 2007) File (HiTRUST Inc.) |
| XLSMHTML | Excel Archived HTML Document (Microsoft Corporation) |
| XLSX | Acrobat document (Adobe) |
| XLSX | Calc workbook (Apache) |
| XLSX | Excel workbook (Microsoft) |
| XLSXENX | egis Encrypted Excel Open XML XLSX File (HiTRUST Inc.) |
| XLS_ | Microsoft Excel Storing spreadsheet data |
| XLT | Excel Template (Microsoft Corporation) |
| XLT | Lotus Translation Table (IBM) |
| XLT | Procomm Plus Translation Table |
| XLTHTML | Excel HTML Template (Microsoft Corporation) |
| XLTM | Excel macro-enabled workbook template (Microsoft) |
| XLTMENX | egis Encrypted XLTM (Excel 2007) File (HiTRUST Inc.) |
| XLTX | Excel template (Microsoft) |
| XLTXENX | egis Encrypted XLTX (Excel 2007) File (HiTRUST Inc.) |
| XLV | Excel VBA (Microsoft Corporation) |
| XLW | Excel Workspace (Microsoft Corporation) |
| XLX | XoloX Incomplete Download File |
| XLXML | Excel XML Worksheet (Microsoft Corporation) |
| XLXS | Microsoft Excel Storing spreadsheets |
| XL_ | Microsoft Excel Damaged Excel file |
| XM | Fast Tracker 2 Extended Module |
| XM2 | TextMap Ver. 2 Case Format File (LexisNexis) |
| XMA | Xbox 360, Xbox (original) Xbox audio |
| XMAP | File That Controls How XML/XSL Gets Served |
| XMB | X-Wing Mission Briefing File |
| XMC | Expression Media Catalog (Microsoft Corporation) |
| XMCD | MathCAD XML-based Worksheet (Mathsoft Engineering & Education Inc.) |
| XMCD | Xmcd CD Information (freedb.org) |
| XMD | GameJack Virtual CD or DVD Image (S.A.D. GmbH.) |
| XMD | OmniMark Source Code (Stilo) |
| XMDX | ExamSoft Exam Monitor Exam Monitor Data |
| XMF | eXtensible Data Model and Format (XDMF) |
| XMF | Extensible Music File Format (MIDI Manufacturers Association Incorporated) |
| XMF | Milnta APL Transfer Function |
| XMF | Mobile XMF File Format |
| XMFG | MediaForge Runtime Player Distribution Project (XMLAuthor, Inc.) |
| XMH | XMap Handheld Street Atlas USA Map and Route File (Delorme) |
| XMI | EverQuest File |
| XMI | Winamp Extended MIDI File |
| XMI | XMill Compressed XML (Dan Suciu, AT&T Labs-Research and Hartmut Liefke, University of Pennsylvania) |
| XMI | XMIT File Format (IBM) |
| XMI | XML Metadata Interchange Format |
| XMIND | XMind Mind mapping |
| XMIT | XMIT File Format (IBM) |
| XML | Final Cut exported video project (Apple) |
| XML | Media Player video and audio playlist (Microsoft) |
| XML | Notepad document (Microsoft) |
| XML | Sublime document (Sublime) |
| XMLB | XMLB Converter Compressed XML data |
| XMLBACKUP | EnABLE Backup File (Energy Scitech Ltd.) |
| XMLS | Microsoft Excel 2003 Excel XML File (Microsoft Corporation) |
| XMM | 3DS Max animation map (Autodesk) |
| XMN | Expression Media Notepad (Microsoft Corporation) |
| XMO | Authorware Movie Driver (Adobe Systems Incorporated) |
| XMP | Adobe Extensible Metadata Platform (Adobe Systems Incorporated) |
| XMP | Graphic File |
| XMP | Spice Pspice Library File |
| XMP | XMap Project Data (Delorme) |
| XMPCF | TextMap Portable Case Format (LexisNexis) |
| XMPSES | Premiere Elements DVD Marker File (Adobe Systems Incorporated) |
| XMPTF | TextMap Portable Transcript Format (LexisNexis) |
| XMPUZZLE | Xmpuzzle Crossword puzzles |
| XMS | AutoCAD External Message (Autodesk, Inc.) |
| XMS | RapidCaption Script (PeopleSupport, Inc.) |
| XMS | ViewCafT XML Markup Session |
| XMS | XMS-Tracker |
| XMSL | Examplify Exam logging |
| XMT_TXT | Parasolid CAD File |
| XMV | Milnta APL Transfer Function |
| XMX | AutoCAD External Message Compiled File (Autodesk, Inc.) |
| XMX | Character Set File |
| XMXP | Help & Manual Uncompressed XML Project (EC Software GmbH) |
| XMZ | Fasttracker 2/Extended Module |
| XMZ | MegaView XGL Movie |
| XMZ | SofTeach Secure Exam File (ExamSoft Worldwide) |
| XNB | Terraria background (505) |
| XNB | XNA Game Studio binary package (Microsoft) |
| XNF | Standard Network File Form |
| XNG | FishXing Culvert Data File (Stream Systems Technology Center, USDA Forest Service) |
| XNG | OM2 911 Xchange Version 6 Document |
| XNK | Exchange shortcut (Microsoft) |
| XNML | NML Language Language Extension (NevoSoft) |
| XNT | Spice Pspice Library File |
| XNT | W32/Sober-AD |
| XOF | OthBase game database data (Fabrice DI MEGLIO) |
| XOF | Reality Lab 3D image (Rendermorphics) |
| XOI | eZediaMX and eZedia Player Locked Presentation Document |
| XOJ | Xournal++ Handwritten notes |
| XOM | OmniMark Source Code (Stilo) |
| XOPP | Xournal++ Saving Notes |
| XOS | Xaos Tools Bitmap Image |
| XOSAWDM | EXFO OSA-2000 Optical Spectrum Data |
| XOT | Xnetech Job Output File |
| XOV | Rapidform XOV 3D Inspection/Model File (INUS Technology, Inc) |
| XP | System Utility File |
| XP3 | Kirikiri package (kikyou) |
| XPA | SoniqSync Extended Playlist (SoniqCast, LLC) |
| XPA | Xpandata DB Transfer Encrypted Compressed File |
| XPADDERCONTROLLER | Xpadder Controller Layout (Xpadder Team) |
| XPAK | Call of Duty: Black Ops Cold War Game Data Archive |
| XPB | XPB! Basic Source Code (Tony D. Jones) |
| XPC | ActionReplay Saved Code (Datel Design and Development Ltd.) |
| XPD | Playstation Download Instruction (DRM) File (Sony Corporation of America) |
| XPF | X-Protector Project (The Xprotector Team) |
| XPF | XaoS Position File (Jan Hubicka, Thomas Marsh, Zoltan Kovacs and Others) |
| XPF | Xemod Project File (Xprise Business Solutions BV) |
| XPI | Firefox extension/add-on (Mozilla) |
| XPIX | Nonogram Puzzle |
| XPJ | Micro Planner X-Pert Project Data File (Micro Planning International Inc.) |
| XPK | Spice Pspice Library File |
| XPK | XPK Player Compressed Audio (Data Becker) |
| XPK | Xscript Package (Codec Games) |
| XPL | Akai Pro MPC Software custom plugin preset file (inMusic) |
| XPL | ePhotoLab order properties file (iNeta) |
| XPL | Explain Everything project file (Promethean) |
| XPL | KaZaa music data file (Sharman Networks) |
| XPL | LCDStudio configuration playlist file (Interscape) |
| XPL | Little Snitch configuration file (Objective Development) |
| XPL | WinExplorer simple script file (Dexter's Laboratory) |
| XPL | X-Plane SDK plug-in (Laminar Research) |
| XPL | X-Setup plug-in (XQDC) |
| XPL | Xplot plot file (Timothy Jason Shepard) |
| XPM | ACDSee Photo Studio image (ACD) |
| XPM | DESQview macro (NortonLifeLock) |
| XPM | PaintShop image (Adobe) |
| XPM | Truesight icon (BMC) |
| XPM | XnView image (XnSoft) |
| XPO | Expo Product Tours Project (InstallShield Software Corporation) |
| XPO | Microsoft Dynamics AX Microsoft Dynamics AX (Microsoft Corporation) |
| XPO | Omega Research ProSuite |
| XPO | X-port Version 1 |
| XPP | xCOMPOSER.pro Multimedia Data File |
| XPR | CodeWarrior user-defined expression (NXP) |
| XPR | Creo part instance accelerator (PTC) |
| XPR | Expression Studio design (Microsoft) |
| XPR | exPressit compact disc label (Pressit) |
| XPR | Kodi skin (XBMC Foundation) |
| XPR | Oxygen XML Editor project (SyncRO) |
| XPR | Vivado Design Suite project (Xilinx) |
| XPS | MonkeyJam exposure sheet (David Perry) |
| XPS | Waves preset (Waves) |
| XPS | X-port data (Datel) |
| XPS | XNA Posing Studio mesh (XNAaraL and Dusan) |
| XPS | XPS Viewer document (Microsoft) |
| XPT | Dungeons & Dragons Core Rules 2 (Wizards of the Coast, Inc.) |
| XPT | eXact Packager Models (Giunti Interactive Labs S.r.l. (a company of Giunti Publising Group)) |
| XPT | SAS Transport (XPORT) Format |
| XPT | XPCOM Type Library |
| XPTHEME | Winstyles Theme (Stardock Corporation, Inc.) |
| XPTOC | XDIME Player Table of Contents (Volantis Systems Ltd.) |
| XPW | Accessible FormNet Fillable Form (Intercon Associates Inc.) |
| XPW | Leading Market Technologies EXPO |
| XPX | Dungeons & Dragons Core Rules 2 with Expansion (Wizards of the Coast, Inc.) |
| XPX | RAFTS-XP Macro File (XP Software Inc.) |
| XPX | XML Format File |
| XPY | MarketBrowser |
| XPY | xpy Settings File (Jan T. Sott) |
| XQL | XML Query Language (XQL) (World Wide Web Consortium) |
| XQT | SuperCalc Macro Sheet |
| XQT | Waffle Executable File |
| XR | Chaos Desktop External Reference File (Chaos systems AB) |
| XR1 | Epic MegaGames Xargon File |
| XRC | wxWidgets wxPython Resource File |
| XRDML | XRD analysis software Storing XRD data |
| XREF | AIX Cross Reference File |
| XRF | Cal3DViewer 3D materials (Cal3DViewer Developer Community) |
| XRF | TrialDirector cross reference (Ipro) |
| XRG | Xscript Game Registry (Codec Games) |
| XRL | OSCAR Rules File |
| XRL | PowerDesigner Report (Sybase, Inc.) |
| XRL | Rapidform XOR/XOS 3D Scan Data & CAD File (INUS Technology, Inc) |
| XRL | XML Résumé Library Résumé |
| XRM-MS | Microsoft Security Certificate (Microsoft Corporation) |
| XRNS | Renoise Music File (Multiple Individuals) |
| XRP | Experior Practice Management Report (Experior Corporation) |
| XRP | RationalPlan Project File (Stand By Soft) |
| XRS | Realplayer Plug-in External Resources File (Real) |
| XRT | Revolution EDX Spectrum Export File in Xraytor Format (4pi Analysis, Inc.) |
| XRW | Architag XRay XML Editor |
| XRX | Expression Encoder Media Profile Settings (Microsoft Corporation) |
| XS | Age of Empires III map generation script (Xbox Game Studios) |
| XS | Exceed application launcher (OpenText) |
| XS | Perl wrapper functions script (Perl Developers) |
| XS3 | XESS Worksheet (Applied Information Systems, Inc.) |
| XS4 | XESS Worksheet (Applied Information Systems, Inc.) |
| XS5 | XESS Worksheet (Applied Information Systems, Inc.) |
| XS8 | SIMUL8 |
| XSA | XSA Raw Disk Image (XelaSoft) |
| XSB | Sokoban++ Level File |
| XSB | XACT XACT (Microsoft Corporation) |
| XSC | Transcribe! Transcription Document (Seventh String Software) |
| XSC | XML Schema |
| XSC | Xscript Script (Codec Games) |
| XSC | XVI32 Script File (Christian Maas) |
| XSD | Pattern Maker stitch design (HobbyWare) |
| XSD | Visual Studio XML schema definition (Microsoft) |
| XSD | XMLSpy XML schema definition (Altova) |
| XSF | Milnta APL Transfer Function |
| XSI | InfoPath form definition (Microsoft) |
| XSI | Softimage 3D model (Autodesk) |
| XSIG | Digital Signature Applications Digital Signatures |
| XSL | FileMaker Database Design Report Template |
| XSL | Steuer2001 File |
| XSL | XML Stylesheet |
| XSLT | XSL Transform File |
| XSM | LEXIS-NEXIS Tracker |
| XSN | InfoPath form template (Microsoft) |
| XSN | xyALGEBRA data (University of New York) |
| XSO | Expresso Project File (Ultrapico) |
| XSP | Cross Stitch Professional Design File (DP Software) |
| XSPF | XSPF Playlist (Xiph.Org Foundation) |
| XSQL | Oracle XSQL Servlet XSQL Template File (Oracle Corporation) |
| XSR | GEOPAK XS-List Report (Bentley Systems, Incorporated) |
| XSR | tekla structures data file (Tekla software) |
| XSS | Ability Office Spreadsheet (Ability Software) |
| XSS | Cross Stitch Professional Design File (DP Software) |
| XST | Easy Cross cross stitch design file (Fulford Software) |
| XST | X-Tract script file (CoreFiling) |
| XST | Xerox WorkCentre Firmware scan template file (Xerox) |
| XSTEP | XStep DWI Maker File |
| XSU | Fortran Libf77 File |
| XSUM | Clapack File |
| XSW | Milnta APL Transfer Function |
| XSWRITER | TechWriter for XML Schemas Document (Adivo Ltd.) |
| XT | FastTracker Music Track |
| XTAK | testXpert III Tensile test data |
| XTB | LocoScript External Translation Table (LocoScript Software) |
| XTC | XTrkCAD Project |
| XTC | XTrkCAD Project (with Remarks) |
| XTD | XML Type Definition |
| XTEL | Xtelplot File Format |
| XTF | Triton eXtended Triton Format file (Triton) |
| XTFX | X-Rite i1Profiler Printer configuration |
| XTG | QuarkXPress Tags File (Quark, Inc.) |
| XTG | TreeGraph 2 TreeGraph 2 (BioInfWeb) |
| XTH | Xiaomi Theme app MIUI Themeing |
| XTI | Blue Wave offline mail reader Blue Wave offline mail reader (Blue Wave Software) |
| XTM | CmapTools Exported Topic Map (IHMC) |
| XTM | Xtremsplit Split Data File |
| XTML | XML4web Virtual HTML File (Altair Communications Corporation) |
| XTODVD | ConvertXtoDVD Project File (VSO-Software) |
| XTP | XTree Data File |
| XTP | XTreeGold Overlay |
| XTP | XTrkCAD Demo |
| XTP | XTrkCAD Demo (with Remarks) |
| XTP | XTrkCAD Parameters |
| XTR | RealArcade Compressed Data File |
| XTS | Babya Desktop Shell System Software Extension |
| XTS | CSPro File |
| XTX | xText Source File (Flambeaux Software) |
| XUF | Milnta APL Transfer Function |
| XUI | XBox / XBox UI Tool XBox / XBox UI Tool (Microsoft Corporation) |
| XUL | XML User Interface Language (Mozilla) |
| XUM | Excel CAPE-OPEN Unit Operation Excel Unit-operation Model (AmsterCHEM) |
| XUR | Xbox One Xbox UI Files |
| XUW | Milnta APL Transfer Function |
| XV | Khoros Visualization Image File |
| XVA | Citrix Hypervisor virtual machine image (Citrix) |
| XVA | XenCenter virtual machine image (Citrix) |
| XVAG | Ratchet & Clank (Playstation 2) Playstation 2 Audio |
| XVB | WinExplorer VB Script |
| XVC | Verge Compiled Game Code (VERGE Co Ltd) |
| XVD | Xbox virtual disk image (Microsoft) |
| XVF | Xyngo Video Board Media File (Xyngo AG) |
| XVG | GROMACS Output File |
| XVI | XenServer Virtual Machine Disk |
| XVID | Media Player video (Microsoft) |
| XVID | VLC video (VideoLAN) |
| XVM | VMware Virtual Machine Console (VMware, Inc.) |
| XVO | ratDVD Internal File (RatDVD - Canada) |
| XVP | Xview Package File |
| XVS | Xview Scene Package File |
| XVU | BOClean Database File |
| XWB | XACT XACT (Microsoft Corporation) |
| XWC | Crosstalk for Windows Compiled Script |
| XWD | Crossdown crossword puzzle (Sam Bellotto Jr.) |
| XWD | GIMP screenshot (The GIMP Team) |
| XWD | PaintShop screenshot (Corel) |
| XWD | Sublime data (Sublime) |
| XWD | XnView screenshot (XnSoft) |
| XWF | Declan Software Word File (Declan Software) |
| XWF | Yamaha XG Works File (Yamaha Corporation of America) |
| XWI | X-Wing Mission File |
| XWK | Crosstalk Keyboard Mapping |
| XWM | XWMA audio codec (Fallout 4) Compressed game audio |
| XWMC | XaeroWorldMap (Minecraft mod) Minimap Cache |
| XWP | Crosstalk for Windows Phone book |
| XWP | Crosstalk Session |
| XWP | Xerox Writer Text File |
| XWP | XMLwriter XML Editor Project File (Wattle Software) |
| XWS | Crosstalk for Windows Script |
| XWS | Xara Webstyle File (Xara) |
| XWV | Reason Malström Synth Instrument Patch (Propellerhead Software) |
| XWZ | Xset Wizards File |
| XWZ_1 | Xteq X-Setup File |
| XX | Arcedit Temporary File |
| XX | ZipGenius encoded file (ZipGenius) |
| XXA | Brixx Planner Account Detail Chart (Brixx Solutions Ltd.) |
| XXD | Brixx Planner Calendar File (Brixx Solutions Ltd.) |
| XXE | Xxencoded File |
| XXG | Brixx Planner Graph (Brixx Solutions Ltd.) |
| XXI | GameSpy Arcade (IGN Entertainment, Inc.) |
| XXL | Archive |
| XXN | Dimenzo Text Editor Text Document (Dimenzo, Inc.) |
| XXP | Brixx Planner Plan File (Brixx Solutions Ltd.) |
| XXR | Brixx Planner Report File (Brixx Solutions Ltd.) |
| XXS | Sorenson Squeeze Settings File (Sorenson Media, Inc.) |
| XXT | Extension DLL |
| XXX | Compucon/Singer PSW Embroidery Design File |
| XXX | Controlware VJ400 Digital CCTV Recording |
| XXX | Paint Shop Photo Album Panorama (Corel Corporation) |
| XXXX | Apple II operating system Golden Orchard Apple II CD Rom file |
| XXXXXX | allTunes Partial Download (Mediaservices, Inc.) |
| XXX_DID | Xender Xender backup metadata |
| XXY | SPARC Executable Script File |
| XY | Fluent plot (Ansys) |
| XY | Prodigy datasheet (SPECS) |
| XY | Sublime text data (Sublime) |
| XY | XYWrite text document (David Erickson) |
| XY3 | XYWrite Text File |
| XY4 | XYWrite IV Document |
| XY4V | XYWrite IV document |
| XYD | XYPad 2D CAD File (Coopware) |
| XYP | XYWrite III Plus Document |
| XYS | XYplorer Script (Donald Lessau) |
| XYT | Xiaomi Devices / Kingsoft Presentation Xiaomi Video / Presentation |
| XYW | XYWrite Windows 4.0 Document |
| XYZ | Förderdiagnose Data File (Bettinger Software) |
| XYZ | Graph Coordinates |
| XYZ | MDL Molfile Co-ordinate Animation Format (MDL Information Systems, Inc.) |
| XYZ | RPG Maker Graphic Format (Enterbrain, Inc.) |
| XYZ | XMol XYZ |
| XYZ | XYZ Graphics bitmap Image |
| XYZ | XYZZLY Plug-In for RealPlayer |
| XYZI | 3rdTech Scanner File |
| XYZRGB | XYZ RGB Graphic (XYZ RGB Inc.) |
| XZ | PeaZip compressed archive file (Giorgio Tani) |
| XZ | WinRAR compressed archive file (RARLAB) |
| XZ | WinZip compressed archive file (Corel) |
| XZ | XZ Utils compressed archive file (The Tukaani Project) |
| XZM | Porteus operating system module file (Porteus) |
| XZM | WinRAR operating system module file (Rarlab) |
| XZP | XZP Container Format |
| X_B | CAD file (CST CAD Navigator) |
| X_B | CATIA model (Dassault Systèmes) |
| X_B | Parasolid model (Siemens) |
| X_B | SolidWorks model (Dassault Systèmes) |
| X_T | CAD file (CST CAD Navigator) |
| X_T | Parasolid model (Siemens) |
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