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C4U file extension

The table below provides useful information about the .c4u file extension. It answers questions such as:

  • What is the .c4u file?
  • What program do I need to open a .c4u file?
  • How can the .c4u file be opened, edited or printed?
  • How can I convert .c4u files to another format?

Table of Contents

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ OpenClonk Update System Data

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.
C4U format description not yet available
Category: Game Data files
Application: OpenClonk
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
C4U aliases:
C4U related links:
C4U related extensions:
OpenClonk Game System Data

Other types of files may also use the .c4u file extension.

🚫 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, cru, c4i, cu, c4k

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Edmics Image
Clonk 4 Script
Clonk Game Key
Crush Compressed Archive
CUDA Source Code
my Knowledge Explorer Change Unit

🔴 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 cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .c4u file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .c4u file extension, write to us!

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