.u
| File Type 1 |
 Subsampled Raw YUV Image |
| File Format |
Standard |
| Usage |
Open manually |
| Rank |
★ ☆ ☆ Uncommon |
| Description |
One of three files from a split .PPM file; others are .V and .Y files; YUV representation is used by the Stanford MPEG codec.
|
| Open With |
| Windows |
 Microsoft Windows Media Player with YUV ...
 Apple QuickTime Player with QuickTime YUV codec
|
| macOS |
Apple QuickTime Player with QuickTime YUV codec |
| Unix |
 ppmtoyuvsplit
yuvsplittoppm |
|
| Updated |
2007 |
| File Type 2 |
AU Audio File |
| File Format |
Standard |
| Usage |
Open manually |
| Rank |
★ ★ ☆ Average |
| Description |
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.
AU files typically use the .AU extension.
|
| Open With |
| Windows |
Apple QuickTime Player
Microsoft Windows Media Player
|
| macOS |
Apple QuickTime Player |
|
| Updated |
2007 |
| File Type 3 |
Unreal Tournament Class Package |
| File Format |
Proprietary (Epic Games) |
| Usage |
Open manually; may be referenced by an application |
| Rank |
★ ★ ☆ Average |
| Description |
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.
|
| Open With |
| Windows |
 Epic Games Unreal Tournament
 Epic Games UnrealEd
Dragon UnPACKer
|
| macOS |
Epic Games Unreal Tournament |
|
| Updated |
2007 |
|
