CAU file format description

Many people share .cau files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .cau file can be edited, converted or printed with. On this page, we try to provide assistance for handling .cau files.

1 filename extension(s) found in our database.

.cau - Trespasser Game Audio

The CAU game data files are related to Trespasser. The CAU file is a Trespasser Game Audio. Jurassic Park: Trespasser is a video game released in 1998 for Microsoft Windows.

Game Data files
- / -
Trespasser Game Audio related extensions:
YSFLIGHT Scenery Data
Akimbot Waypoint Data
ROSE Online Game Data
The Secret of Monkey Island: Special Edition Texture Data
The Witcher 2 Game Localization Data
Grim Dawn Default Character Data

Naturally, other applications may also use the .cau file extension. Even harmful programs can create .cau files. Be especially cautious with .cau files coming from an unknown source!

Can't open a .cau file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .cau file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

acu, au, ca, cah, cai, caj, cak, cu, cwu, dau, fau

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

ACUCOBOL-GT Compiled Program
CUDA Source Code
my Knowledge Explorer Change Unit
China Academic Journals Document
Sega Saturn Cinepak Video
DATAIR FlexPlus Data

Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

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If you have useful information about the .cau file format, then write to us! >> CAU file