All File Extension Names Start With u
TOTAL
Extensions

127

Total Extension Name
TOTAL
Type

137

Total Extension Type
Browse Extensions

All File Extensions That Start With The Letter U

Extension Name Extension Type Category Dev.Company File Format
.UUE File Extension Uuencoded File Encoded N/A Text
.UNF File Extension UNIF ROM File Game N/A Unknown
.UCF File Extension WebEx Media File Web Cisco Systems Binary
.UWL File Extension User Word List File Data Corel Unknown
.UTZ File Extension UIQ Theme Package Settings UIQ Technology Zip
.UNITY3D File Extension Unity Web Player File Game Unity Technologies Binary
.UDK File Extension Unreal Engine Map File Game Epic Games Binary
.U3D File Extension Universal 3D File 3D Image 3D Industry Forum Binary
.UNITY File Extension Unity Scene File Game Unity Technologies Binary
.USR File Extension SmartMusic Custom File Data MakeMusic Unknown
.USR File Extension FileMaker Pro Database File Database FileMaker Binary
.UDCX File Extension Universal Data Connection File Settings Microsoft XML
.USM File Extension USM Game Video File Video N/A Binary
.UIS File Extension WindowBlinds User Interface Specification Settings Stardock Unknown
.UMOD File Extension Unreal Tournament Module File Game Epic Games Unknown
.UT2MOD File Extension Unreal Tournament 2003/2004 Module File Game Epic Games Unknown
.UT3 File Extension Unreal Tournament 3 Map File Game Epic Games Binary
.USERPROFILE File Extension Norton AntiVirus User Profile File Settings Symantec Binary
.UKX File Extension Unreal Animation Package Game Epic Games Binary
.UT4MOD File Extension Unreal Tournament 2004 Module Game Epic Games Unknown
.UVX File Extension Unreal Tournament 2003 Saved Game Game Epic Games Unknown
.UPOI File Extension iGO Points of Interest File Data Nav N Go Unknown
.UNITYPACKAGE File Extension Unity Package File Data Unity Technologies Binary
.UDL File Extension Microsoft Universal Data Link File Database Microsoft Text
.UVW File Extension UVW Coordinates File Data N/A Text
.UMD File Extension Splinter Cell Blacklist Game Data File Game Ubisoft Unknown
.UNITYPROJ File Extension Unity 3D Project Game Unity Technologies XML
.UWRF File Extension Universal Web Radio File Data Zogolo Unknown
.USF File Extension Universal Subtitles Format File Video N/A XML
.USF File Extension Nintendo 64 Music File Audio N/A Unknown
.USEQ File Extension USeq Genome Data File Data Huntsman Cancer Institute Zip
.UML File Extension UML Data Object Model Developer N/A XML
.UCT File Extension UC Browser Theme File Settings UC Mobile Binary
.UPR File Extension Fractal Parameters File Data N/A Text
.UPR File Extension FileMaker User Dictionary Data FileMaker Text
.UBOX File Extension Universe Sandbox Data File Data Universe Sandbox Zip
.UOT File Extension Uniform Office Document Text N/A Binary
.UOP File Extension Uniform Office Presentation Data N/A Binary
.UOP File Extension Ultima Online Patch File Game Electronic Arts Unknown
.UOS File Extension Uniform Office Spreadsheet Spreadsheet N/A Binary
.UPS File Extension UPS Patch File Game N/A Unknown
.UU File Extension Uuencoded File Encoded N/A Text
.UC File Extension UnrealScript Class Game N/A Unknown
.UHA File Extension UHarc Compressed Archive Compressed UHarc Unknown
.UIF File Extension Universal Image Format Disc Image Disk Image MagicISO Unknown
.UTXT File Extension Unicode Text File Text N/A Unknown
.UVF File Extension Uncertain Value Format Data N/A Unknown
.UW File Extension Unsigned Word Audio File Audio N/A Unknown
.ULT File Extension UltraTracker Module Audio N/A Unknown
.UNI File Extension MikMod UniMOD Module Audio N/A Unknown
.U File Extension Unreal Tournament Class Package Game Epic Games Binary
.U File Extension AU Audio File Audio N/A Unknown
.U File Extension Subsampled Raw YUV Image Raster Image N/A Binary
.UXX File Extension Unreal Tournament Cache Game N/A Unknown
.UNR File Extension Unreal Level Map Game N/A Unknown
.UNX File Extension Unix Text File Text N/A Unknown
.UTF8 File Extension Unicode UTF8-Encoded Text Document Text N/A Text
.USX File Extension Unreal Static Meshes Game Epic Games Binary
.UT2 File Extension Unreal Tournament Map Game Epic Games Unknown
.UTX File Extension Unreal Texture Package Game Epic Games Binary
.UAX File Extension Unreal Audio Package Audio Epic Games Binary
.UMX File Extension Unreal Music Package Game Epic Games Binary
.UWF File Extension UltraTracker Wave File Audio N/A Unknown
.UNAUTH File Extension SiteMinder Unauthorized Message File Text Netegrity Unknown
.UCI File Extension UFS Explorer Backup File Backup SysDevSoftware Unknown
.ULF File Extension Universal List File Data N/A Unknown
.USFLIB File Extension Nintendo 64 Song Library Audio N/A Unknown
.ULS File Extension NetMeeting User Location Service File Misc Microsoft Unknown
.UI File Extension User Interface File Developer Digia XML
.USA File Extension Unreal Saved Game File Game Epic Games Unknown
.ULZ File Extension USBlyzer Data Capture File Data USBlyzer Unknown
.UDB File Extension Dynamics AX User Database File Database Microsoft Unknown
.UOF File Extension Uniform Office Document Text N/A Binary
.UDEB File Extension Debian Package File Data The Debian Project Unknown
.UNIF File Extension UNIF ROM File Game N/A Unknown
.UCL File Extension Killing Floor System File Game Tripwire Interactive Unknown
.UGR File Extension Apophysis Ultra Fractal Gradient File Settings N/A Binary
.UB File Extension Unsigned Byte Audio File Audio N/A Unknown
.ULD File Extension Unified Luminaire Data File CAD DIAL Unknown
.ULX File Extension Glulx Game File Game Andrew Plotkin Unknown
.UUD File Extension UUDecoded File Encoded N/A Unknown
.UGA File Extension Ulead GIF Animator File Raster Image Ulead Unknown
.UFO File Extension Ulead File Object Raster Image Ulead Binary
.UCE File Extension Windows UCE System File System Microsoft Binary
.UDS File Extension Sierra Generations File Data Sierra Unknown
.UDS File Extension NetBackup UNIX Domain Socket File Misc Symantec Unknown
.UDS File Extension Uniform Data System File Data HSRA Unknown
.UPDATE File Extension ISAPI Update File Data EggCentric Unknown
.UNT File Extension AutoCAD Unit Definition File CAD Autodesk Text
.USER File Extension Visual Studio Project User Options File Settings Microsoft Text
.UTW File Extension Unity Whirld File Game Aubrey Falconer Binary
.ULAW File Extension Raw u-Law Audio File Audio N/A Binary
.UMLCLASS File Extension UML Class Model Developer N/A XML
.UMF File Extension MediaHolder Universal Media Format File Data GetMediaHolder.com Binary
.UNL File Extension Garmin Unlock File Misc Garmin Unknown
.UFS.UZIP File Extension Compressed Unix File System File Compressed The FreeBSD Project Binary
.UDF File Extension Universal Disk Format File Disk Image Optical Storage Technology Association Binary
.UDF File Extension Excel User Defined Function Executable Microsoft Text
.UZIP File Extension FreeBSD Compressed Disk Image Compressed Maxim Sobolev Binary
.UHTML File Extension UC Browser Saved Webpage Web UC Mobile Unknown
.UPF File Extension MicroStation User Preferences File Settings Bentley Systems Binary
.UPF File Extension Unified Power Format File CAD IEEE Unknown
.UPX File Extension Ultimate Packer for eXecutables File Executable Markus Oberhumer Binary
.UBJ File Extension Universal Binary JSON File Data The Buzz Media Binary
.USTAR File Extension Uniform Standard Tape Archive Format File Data N/A Binary
.UPD File Extension Program Update Information Text N/A Text
.UFS File Extension FreeBSD Unix File System File Disk Image The FreeBSD Project Binary
.URR File Extension Uniface Signatures File Misc Compuware Unknown
.UC2 File Extension UltraCompressor 2 Archive Compressed N/A Unknown
.UCM File Extension Crazy Machines Model File Game Viva Media Binary
.UPDATR File Extension iConomy Update File Game Nijikokun Text
.UQM File Extension The Ur-Quan Masters Game Data File Game The Ur-Quan Masters Zip
.U8 File Extension 3D Lemmings Audio File Audio Clockwork Games Binary
.UNK File Extension Unknown File Misc N/A Unknown
.UT8 File Extension Ghost Master Language File Game Sick Puppies Text
.ULW File Extension u-Law Audio File Audio N/A Binary
.URT File Extension Utah Raster Toolkit File Raster Image N/A Binary
.UMS File Extension Rune 3D Mesh File 3D Image Human Head Studios Unknown
.U10 File Extension UFile 2010 Tax Return Data Dr Tax Software Unknown
.UPK File Extension Unreal Engine 3 Package Game Epic Games Binary
.UCCAPILOG File Extension Microsoft UCC API Log File Data Microsoft Binary
.UNKNOWN File Extension Unknown Misc N/A Unknown
.UDC File Extension Adobe InDesign User Dictionary Data Adobe Systems Unknown
.U11 File Extension UFile 2011 Tax Return Data Dr Tax Software Unknown
.U12 File Extension UFile 2012 Tax Return Data Dr Tax Software Unknown
.UST File Extension UTAU Sequence Text File Audio UTAU Text
.ULP File Extension EAGLE User Language Program Data CadSoft XML
.UPG File Extension Upgrade File Misc N/A Binary
.UFR File Extension Ultra Fractal File Vector Image Frederik Slijkerman Binary
.URL File Extension Internet Shortcut Web N/A Text
.U3I File Extension U3 Application Information File Text N/A XML
.UTC File Extension Bioware Creature File Game BioWare Unknown
.U3P File Extension U3 Smart Application Executable SanDisk Zip
.UIBAK File Extension UltraISO Backup Disk Image Disk Image EZB Systems Unknown
.UD File Extension OmniPage User Dictionary Data Nuance Communications Unknown
.UEA File Extension Protector Suite QL Encrypted Archive Encoded AuthenTec Binary
.USERTILE-MS File Extension Windows 8 User Tile File Raster Image Microsoft Binary


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