File Extensions beginning with the letter 'U'

File Extensions beginning with the letter 'U'


search tip Search

Extension currently sorted on Extension Description click to sort by Description Format MIME Type
U3D Universal 3D. A vector image format for 3D images. More info.
UB Raw unsigned byte (8-bit) data
UC2 Archive; Ultra-Compressor II
UCN Archive; Ultra-Compressor II
UDF Universal Disk Format. A disk image, similar to .ISO
UDF Uniqueness Database File. Used for automated installation on Microsoft Windows NT and later. Details.
UDW Raw unsigned doubleword (32-bit) data
UE2 Encrypted Archive; Ultra-Compressor II
UFO Unified Font Object. Details
uid
UL Sound; Ulaw
ULAW US telephony format (CCITT G.711) audio
ULS Internet; User Location Service (Internet New Media Phone) (MIME: text/iuls)
ULT Sound; Ultra-Tracker Music
ULT Ultratracker music module (MOD) file
UNI MikMod UniMod formatted file
UNI Data; Forecast-Pro
UPD Text Document (update)
URL Internet shortcut file
url uniform resource location
URL Internet Shortcut
URL Internet Shortcut
URT Utah Raster Toolkit
USE MKS Source Integrity file
USL Font; Hewlett-Packard Laser Printer Landscape Font
USP Font; Hewlett-Packard Laser Printer Portrait Font
USR
UTD Universal Text Data. Details
UTL QuickBooks; Data
UU UU-encoded file
UU Archive; Not necessarily compressed, may be UUE
uue Uuencoded file (encoded ascii)
UUE UU-encoded file
UUE Archive; UUE Encoded Archive; see XXE
uue UUEncoded
UW Sound
UW Raw unsigned word (16-bit) data
UWF UltraTracker Wave file
UWL