Home : File Types : U File

.U File Extension

File Type 1Unreal Tournament Class Package

DeveloperEpic Games
3.7 (29 Votes)
CategoryGame Files

What is a U file?

Contains settings used by Unreal Tournament; stored within the Unreal System directory, i.e. "\Unreal\System\Engine.u;" may be replaced with custom class packages.

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Programs that open U files

Updated 3/5/2012

File Type 2AU Audio File

3.3 (9 Votes)
CategoryAudio Files

.U File Association 2

Audio container format typically used to store ?-law encoded audio data; introduced by Sun Microsystems and also used by MusicKit for the NeXT operating system; contains a header that includes six 32-bit words, an optional information section, then the audio data.

More Information

AU files typically use the .AU extension.

Programs that open U files

Updated 3/27/2014

File Type 3Subsampled Raw YUV Image

2.3 (6 Votes)
CategoryRaster Image Files

.U File Association 3

Subsampled "U" image created by ppmtoyuvsplit, a Unix-based command-line utility that splits .PPM files into .Y, U, and .V files; contains the "U" chrominance, or color, component for the image; used for storing image data in a format required by the Stanford MPEG codec.

More Information

Y, U, and V files can be built back into their original PPM file using the yuvsplittoppm utility.

NOTE: The ppmtoyuvsplit and yuvsplittoppm programs are part of netpbm, a Unix-based graphics package.

Programs that open U files

Updated 5/26/2010

About U Files

Our goal is to help you understand what a file with a *.u suffix is and how to open it.

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