>> C4U file

C4U file format description

Many people share .c4u files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .c4u file can be edited, converted or printed with. On this page, we try to provide assistance for handling .c4u files.

1 filename extension(s) found in our database.

.c4u - OpenClonk Update System Data

The C4U game data files are related to OpenClonk. C4U file is an OpenClonk Update System Data. OpenClonk is a free multiplayer action game in which you control clonks, small but witty and nimble humanoid beings.

Game Data files
- / -
OpenClonk Update System Data related extensions:
OpenClonk Game System Data

Naturally, other applications may also use the .c4u file extension. Even harmful programs can create .c4u files. Be especially cautious with .c4u files coming from an unknown source!

Can't open a .c4u 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 .c4u file extension is often given incorrectly!

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

c4, c4i, c4k, cru, cu

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

my Knowledge Explorer Change Unit
Clonk 4 Script
CUDA Source Code
Edmics Image
CU-SeeMe Data
Clonk Game Object Data

Operating systems currently supports the following operating systems:

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

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