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U File Extensions

File Extension File Type Popularity
.UUEUuencoded File
.UNITYUnity Scene File
.UDKUnreal Engine Map File
.UNITY3DUnity Web Player File
.UWLUser Word List File
.UCFWebEx Media File
.UCCAPILOGMicrosoft UCC API Log File
.U3DUniversal 3D File
.U10UFile 2010 Tax Return
.UTZUIQ Theme Package
.USRSmartMusic Custom File
.UPKUnreal Engine 3 Package
.UNFUNIF ROM File
.UDCXUniversal Data Connection File
.UVXUnreal Tournament 2003 Saved Game
.UNITYPACKAGEUnity Package File
.UDLMicrosoft Universal Data Link File
.UMODUnreal Tournament Module File
.USERPROFILENorton AntiVirus User Profile File
.USRFileMaker Pro Database File
.UT4MODUnreal Tournament 2004 Module
.UNKNOWNUnknown File Type
.UPOIiGO Points of Interest File
.UKXUnreal Animation Package
.UT3Unreal Tournament 3 Map File
.UT2MODUnreal Tournament 2003/2004 Module File
.UDCAdobe InDesign User Dictionary
.UMLUML Data Object Model
.U11UFile 2011 Tax Return
.U12UFile 2012 Tax Return
.USTUTAU Sequence Text File
.UVWUVW Coordinates File
.UMDSplinter Cell Blacklist Game Data File
.UNITYPROJUnity 3D Project
.ULPEAGLE User Language Program
.UWRFUniversal Web Radio File
.UPSUPS Patch File
.USFUniversal Subtitles Format File
.USEQUSeq Genome Data File
.UCTUC Browser Theme File
.UOTUniform Office Document
.UFRUltra Fractal File
.UPRFractal Parameters File
.UBOXUniverse Sandbox Data File
.USMUSM Game Video File
.UOPUniform Office Presentation
.UOSUniform Office Spreadsheet
.UPGUpgrade File
.UASSETUnreal Asset File
.UISWindowBlinds User Interface Specification
.UIFUniversal Image Format Disc Image
.UNAUTHSiteMinder Unauthorized Message File
.UNIMikMod UniMOD Module
.UWFUltraTracker Wave File
.UTF8Unicode UTF8-Encoded Text Document
.USXUnreal Static Meshes
.ULTUltraTracker Module
.UT2Unreal Tournament Map
.UTXUnreal Texture Package
.UAXUnreal Audio Package
.UMXUnreal Music Package
.UNRUnreal Level Map
.UXXUnreal Tournament Cache
.UTXTUnicode Text File
.UWUnsigned Word Audio File
.UCUnrealScript Class
.UVFUncertain Value Format
.UHAUHarc Compressed Archive
.UAU Audio File
.USFNintendo 64 Music File
.USFLIBNintendo 64 Song Library
.UUUuencoded File
.UUnreal Tournament Class Package
.URLInternet Shortcut
.ULZUSBlyzer Data Capture File
.ULSNetMeeting User Location Service File
.UIUser Interface File
.UCIUFS Explorer Backup File
.U3IU3 Application Information File
.U3PU3 Smart Application
.USAUnreal Saved Game File
.ULFUniversal List File
.UIBAKUltraISO Backup Disk Image
.UDBDynamics AX User Database File
.UTCBioware Creature File
.UNXUnix Text File
.UFTTorque Font Cache File
.UOFUniform Office Document
.USFEVGA Precision X Skin File
.UGOIRAUgoira Animated Image File
.UCLKilling Floor System File
.UBUnsigned Byte Audio File
.UGRApophysis Ultra Fractal Gradient File
.ULDUnified Luminaire Data File
.ULXGlulx Game File
.UFOUlead File Object
.UGAUlead GIF Animator File
.UCEWindows UCE System File
.UUDUUDecoded File
.UEAProtector Suite QL Encrypted Archive
.UNIFUNIF ROM File
.UMAPUnreal Engine Map File
.UHTMLUC Browser Saved Webpage
.USERVisual Studio Project User Options File
.UNLGarmin Unlock File
.ULAWRaw u-Law Audio File
.UPRFileMaker User Dictionary
.UNTAutoCAD Unit Definition File
.UDFUniversal Disk Format File
.UZIPFreeBSD Compressed Disk Image
.UTWUnity Whirld File
.UFS.UZIPCompressed Unix File System File
.UMLCLASSUML Class Model
.UPDATEISAPI Update File
.UMFMediaHolder Universal Media Format File
.UPFUnified Power Format File
.UPXUltimate Packer for eXecutables File
.UDOmniPage User Dictionary
.UBJUniversal Binary JSON File
.UDEBDebian Package File
.UOPUltima Online Patch File
.UDSSierra Generations File
.UPFMicroStation User Preferences File
.UFSFreeBSD Unix File System File
.UPDProgram Update Information
.UDFExcel User Defined Function
.UDSUniform Data System File
.UNKUnknown File
.URRUniface Signatures File
.USubsampled Raw YUV Image
.UCMCrazy Machines Model File
.UDSNetBackup UNIX Domain Socket File
.UQMThe Ur-Quan Masters Game Data File
.UPDATRiConomy Update File
.U83D Lemmings Audio File
.UMSRune 3D Mesh File
.ULWu-Law Audio File
.USTARUniform Standard Tape Archive Format File
.USERTILE-MSWindows 8 User Tile File
.URTUtah Raster Toolkit File
.UC2UltraCompressor 2 Archive
.UT8Ghost Master Language File