| File extension |
File description |
Developer/Producer |
| .x |
DirectX Model File |
Microsoft |
| .x32 |
Adobe Xtra File |
Adobe Systems |
| .x3d |
Xara3D Project |
MAGIX |
| .x3f |
SIGMA X3F Camera RAW File |
SIGMA |
| .x4k |
XML4King Configuration File |
Optimal Performance |
| .x64 |
Commodore 64 Disk Image |
N/A |
| .xa |
The Sims Audio File |
Electronic Arts |
| .xadd |
Expression Web Add-in |
Microsoft |
| .xaf |
3ds Max XML Animation File |
Autodesk |
| .xaiml |
XAIML Chatterbot Database File |
Devyn Collier Johnson |
| .xaml |
XAML File |
Microsoft |
| .xamlx |
Visual Studio Workflow Service File |
Microsoft |
| .xan |
Worms Map File |
Team17 Software |
| .xap |
Silverlight Application Package |
Microsoft |
| .xappl |
Spoon XML Application Configuration File |
Spoon |
| .xar |
Xara Xtreme Drawing |
MAGIX |
| .xas |
Pro/ENGINEER Assembly Instance Accelerator File |
Parametric Technology |
| .xba |
OpenOffice.org Basic Module File |
Oracle |
| .xbap |
XAML Browser Application File |
Microsoft |
| .xbc |
SMART Notebook File |
SMART Technologies |
| .xbdoc |
Xiosis Scribe Document |
Xiosis |
| .xbe |
Xbox Executable File |
Microsoft |
| .xbel |
XBEL Bookmarks File |
Python XML SIG |
| .xbk |
XenServer Backup File |
Citrix |
| .xbl |
Extensible Binding Language File |
Mozilla |
| .xbm |
X11 Bitmap Graphic |
N/A |
| .xbplate |
Xiosis Scribe Template |
Xiosis |
| .xbsav |
Mass Effect 2 Xbox Saved Game |
Electronic Arts |
| .xbt |
SMART Notebook Template File |
SMART Technologies |
| .xcappdata |
Xcode App Data File |
Apple |
| .xcarchive |
Xcode Archive |
Apple |
| .xcdatamodel |
Xcode Core Data Model File |
Apple |
| .xcdatamodeld |
Xcode Core Data Model File |
Apple |
| .xcf |
GIMP Image File |
GIMP |
| .xcode |
Xcode Project |
Apple |
| .xcodeproj |
Xcode Project |
Apple |
| .xcsl |
CineStyle Color Correction File |
Technicolor |
| .xcsnapshots |
Xcode Snapshot |
Apple |
| .xcu |
OpenOffice.org Configuration File |
OpenOffice.org |
| .xcworkspace |
Xcode Workspace File |
Apple |
| .xdb |
Symantec Virus Database File |
Symantec |
| .xdi |
WinArchiver Extended Disc Image File |
WinArchiver Computing |
| .xdl |
XML Schema File |
N/A |
| .xdp |
XML Data Package |
Adobe Systems |
| .xdr |
XML-Data Reduced File |
Microsoft |
| .xds |
DS Game Maker Project File |
Invisionsoft |
| .xdw |
Fuji Xerox DocuWorks File |
Fuji Xerox |
| .xef |
WinAce Encrypted File |
N/A |
| .xej |
Expression Encoder Job File |
Microsoft |
| .xel |
Expression Encoder Live Encoding File |
Microsoft |
| .xem |
PowerDesigner Model definition File |
Sybase |
| .xen |
Guitar Hero III Data File |
Activision |
| .xensearch |
XenCenter Saved Search File |
Citrix |
| .xep |
eManager File Packaging Information |
N/A |
| .xer |
Primavera P6 Project File |
Oracle |
| .xes |
eManager Skins Definition |
N/A |
| .xesc |
Expression Encoder Screen Capture File |
Microsoft |
| .xet |
eManager Process Definition |
N/A |
| .xev |
eManager Auto-Update File |
N/A |
| .xex |
Xbox 360 Executable File |
Microsoft |
| .xez |
eManager Template Package |
N/A |
| .xfd |
XFD File |
UWI |
| .xfdf |
Adobe Acrobat XFDF File |
Adobe Systems |
| .xfdl |
XFDL File |
UWI |
| .xfl |
Flash Movie Archive |
Adobe Systems |
| .xfn |
Ventura Printer Font |
N/A |
| .xfo |
XSL-FO Formatted Form |
N/A |
| .xfr |
iProcess Process Definition File |
TIBCO Software |
| .xfs |
eRacer Sound File |
eRacer |
| .xft |
Adobe Form Designer 5.0 File |
N/A |
| .xgml |
Graph Modeling Language XML File |
N/A |
| .xgmml |
XGMML Graph File |
N/A |
| .xgp |
Xfire Game Patcher File |
XGP |
| .xgs |
XACT Global Settings File |
Microsoft |
| .xht |
XHTML File |
N/A |
| .xhtm |
Extensible Hypertext Markup Language Document |
N/A |
| .xhtml |
Extensible Hypertext Markup Language File |
N/A |
| .xi |
Fasttracker 2 Extended Instrument File |
N/A |
| .xib |
Interface Builder File |
Apple |
| .xif |
ScanSoft Pagis File |
Nuance Communications |
| .xise |
Xilinx ISE Project File |
Xilinx |
| .xl |
Excel Spreadsheet |
Microsoft |
| .xla |
Excel Add-In File |
Microsoft |
| .xlam |
Excel Open XML Macro-Enabled Add-In |
Microsoft |
| .xlb |
Excel Toolbars File |
Microsoft |
| .xlc |
Excel Chart |
Microsoft |
| .xld |
Excel Database File |
Microsoft |
| .xlf |
XLIFF Document |
OASIS |
| .xlgc |
ExpressK Database File |
Prosystech |
| .xliff |
XLIFF Localization File |
OASIS |
| .xlk |
Excel Backup File |
Microsoft |
| .xll |
Excel Add-In File |
Microsoft |
| .xlm |
Excel Macro |
Microsoft |
| .xlmv |
Xunlei Movie File |
Thunder Network Technologies |
| .xlnk |
XML Shortcut File |
N/A |
| .xlr |
Works Spreadsheet |
Microsoft |
| .xls |
Excel Spreadsheet |
Microsoft |
| .xlsb |
Excel Binary Spreadsheet |
Microsoft |
| .xlshtml |
Microsoft Excel HTML Spreadsheet |
Microsoft |
| .xlsm |
Excel Open XML Macro-Enabled Spreadsheet |
Microsoft |
| .xlsmhtml |
Microsoft Excel MIME HTML Spreadsheet |
Microsoft |
| .xlsx |
Microsoft Excel Open XML Spreadsheet |
Microsoft |
| .xlt |
Excel Template |
Microsoft |
| .xlthtml |
Microsoft Excel HTML Spreadsheet Template |
Microsoft |
| .xltm |
Excel Open XML Macro-Enabled Spreadsheet Template |
Microsoft |
| .xltx |
Excel Open XML Spreadsheet Template |
Microsoft |
| .xlv |
Excel Visual Basic Module |
Microsoft |
| .xlw |
Excel Workspace File |
Microsoft |
| .xm |
Fasttracker 2 Extended Module |
Fasttracker |
| .xmap |
XMind 2007/2008 Workbook |
XMind |
| .xmb |
Age of Empires Game Data File |
Microsoft |
| .xmcd |
Mathcad Worksheet File |
Parametric Technology Corporation |
| .xmcdz |
Mathcad Compressed Worksheet File |
Parametric Technology Corporation |
| .xmct |
Mathcad XML Worksheet Template |
PTC |
| .xmd |
Extended Media Disc Image |
Engelmann Media |
| .xmf |
Cal3D XML Mesh File |
Cal3D |
| .xmi |
XML Metadata Interchange File |
Object Management Group |
| .xmind |
XMind Workbook File |
XMind |
| .xml |
XML File |
N/A |
| .xmlper |
LeCroy Binary Waveform File |
N/A |
| .xmm |
3ds Max XML Animation Map File |
Autodesk |
| .xmmap |
MindManager XML Map File |
Mindjet |
| .xmp |
Extensible Metadata Platform File |
Adobe Systems |
| .xmpz |
Miradi XML Project File |
Benetech |
| .xmv |
Xbox Media Video File |
Microsoft |
| .xmz |
FastTracker 2 Extended Module |
Starbreeze Studios |
| .xnb |
XNA Game Studio Binary Package |
Microsoft |
| .xnk |
Exchange Shortcut |
N/A |
| .xnt |
QuarkXPress Extension File |
Quark Software |
| .xof |
Reality Lab 3D Image File |
RenderMorphics |
| .xol |
Swiss Map Overlay |
swisstopo |
| .xom |
Worms 3D Object File |
Team17 Software |
| .xoml |
Windows Workflow File |
N/A |
| .xp |
Fastracker 2 Pattern |
Starbreeze Studios |
| .xp2 |
XPilot NG |
XPilot NG |
| .xp3 |
KiriKiri Package File |
KiriKiri |
| .xp4 |
KiriKiri Package |
KiriKiri |
| .xpaddercontroller |
Xpadder Controller Profile |
Xpadder |
| .xpd |
XML Pipeline Document |
N/A |
| .xpdl |
XPDL Module |
Workflow Management Coalition |
| .xpg |
Autoplay Media Studio Exported Page |
Indigo Rose |
| .xpi |
Mozilla Installer Package |
Mozilla |
| .xpj |
RoboHelp HTML Project File |
Adobe Systems |
| .xpk |
WWE RAW Model File |
THQ |
| .xpl |
LcdStudio Playlist File |
LcdStudio |
| .xpm |
X11 Pixmap Graphic |
N/A |
| .xpp |
X++ Source Code File |
Microsoft |
| .xpr |
Pro/ENGINEER Part Instance Accelerator File |
Parametric Technology |
| .xps |
XML Paper Specification File |
Microsoft |
| .xpt |
Mozilla Firefox Component |
N/A |
| .xq |
XQuery File |
The W3C XML Query Working Group |
| .xql |
XML Query Language File |
The W3C XML Query Working Group |
| .xqm |
XQuery Module |
The W3C XML Query Working Group |
| .xqt |
SuperCalc Macro File |
N/A |
| .xquery |
XQuery Source Code File |
The W3C XML Query Working Group |
| .xqy |
XQuery Source File |
The W3C XML Query Working Group |
| .xrf |
Cal3D XML Materials File |
Cal3D |
| .xrff |
Extensible Attribute-Relation File Format |
University of Waikato |
| .xrm-ms |
Microsoft Security Certificate |
Microsoft |
| .xrns |
Renoise Song File |
Renoise |
| .xrp |
RationalPlan Project File |
Stand By Soft |
| .xry |
XRY Data File |
Micro Systemation |
| .xs |
Age of Empires 3 Map AI Generator |
Microsoft |
| .xsb |
XACT Sound Bank |
Microsoft |
| .xsc |
Visual Studio Dataset Internal Info File |
Microsoft |
| .xsd |
XML Schema Definition |
N/A |
| .xsf |
InfoPath Form Definition File |
Microsoft |
| .xsi |
Softimage XSI 3D Image |
Autodesk |
| .xsiaddon |
Softimage Add-on File |
Autodesk |
| .xsl |
XML Style Sheet |
N/A |
| .xslic |
XenServer License File |
Citrix |
| .xslt |
XSL Transformation File |
N/A |
| .xsn |
InfoPath Form Template File |
Microsoft |
| .xsp |
XBMC Smart Playlist File |
XBMC |
| .xspf |
XSPF Playlist File |
N/A |
| .xss |
XML Style Sheet |
Oracle |
| .xst |
WebSphere Query Template |
IBM |
| .xsvf |
Xilinx Serial Vector Format File |
Xilinx |
| .xsx |
Visual Studio XML Schema Layout File |
Microsoft |
| .xt |
Xdebug Trace File |
N/A |
| .xtg |
Extensible TreeGraph File |
Ben Stöver |
| .xtl |
Vietcong Data File |
Pterodon |
| .xtm |
CmapTools Exported Topic Map |
IHMC |
| .xtp |
AutoCAD Exported Tool Palettes File |
Autodesk |
| .xtreme |
Winstep Xtreme Theme Pack |
Winstep Software Technologies |
| .xui |
Xbox 360 User Interface File |
Microsoft |
| .xul |
XML User Interface Language File |
Mozilla |
| .xur |
Xbox 360 Binary User Interface File |
Microsoft |
| .xv0 |
Lattice XVL Structure File |
Lattice Technology |
| .xv3 |
Lattice XVL Geometry File |
Lattice Technology |
| .xva |
XenServer Virtual Appliance File |
Citrix |
| .xvct |
VISE XML Project File |
MindVision Software |
| .xvid |
Xvid-Encoded Video File |
Xvid |
| .xvm |
VMware Console Configuration File |
VMware |
| .xvmconf |
World of Tanks XVM Configuration File |
XVM |
| .xwb |
XACT Wave Bank |
Microsoft |
| .xwd |
X Windows Dump Image |
N/A |
| .xwf |
OmniPage Workflow File |
Nuance Communications |
| .xwk |
Crosstalk Communicator Keyboard Mapping File |
Intel |
| .xwp |
XMLwriter Project |
N/A |
| .xws |
Xara Web Designer Graphic |
MAGIX |
| .xx |
XXEncoded File |
N/A |
| .xxd |
Brixx Planner Calendar |
Brixx |
| .xxe |
XXEncoded File |
N/A |
| .xxx |
Compucon Singer Embroidery File |
Compucon USA |
| .xy |
XYWrite Document |
XyQuest |
| .xy3 |
XYWrite III Document |
N/A |
| .xyp |
XYWrite Plus Document |
N/A |
| .xys |
XYplorer Script File |
Donald Lessau |
| .xyw |
XYWrite for Windows Document |
N/A |
| .xyz |
Molecule Specification File |
N/A |
| .xyzv |
Celestia Sampled Trajectory File |
Celestia Development Team |
| .xz |
XZ Compressed Archive |
Tukaani |
| .xzfx |
ZipLogix ZipForm File |
ZipLogix |
| .x_b |
Parasolid Model Part File |
Siemens PLM Software |
| .x_t |
Parasolid Model Part File |
Siemens PLM Software |
