C4K file format description

Many people share .c4k files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .c4k file can be edited, converted or printed with. On this page, we try to provide assistance for handling .c4k files.

1 filename extension(s) found in our database.

.c4k - Clonk Game Key

The C4K game data files are related to Clonk. The C4K file is a Clonk Game Key. Clonk is a series of video games that mix action, strategy and platform gameplay.

Application:

Clonk

Category:

Game Data files

Mime-type:

application/octet-stream

Magic:

- / -

Aliases:

Clonk Game Key related extensions:

.c4b: Clonk Game Data
.c4f: Clonk Game Round Data
.c4i: Clonk Game Object Data
.c4l: Clonk Game Data
.c4m: Clonk Game Material Data
.c4s: Clonk Game Scenario

Naturally, other applications may also use the .c4k file extension. Even harmful programs can create .c4k files. Be especially cautious with .c4k files coming from an unknown source!

Can't open a .c4k 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:

example.c4k

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.

Open Control Panel > Control Panel Home > Default Programs > Set Associations.
Select a file type in the list and click Change Program.

The .c4k file extension is often given incorrectly!

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

c4, c4l, c4m, c4u, ck, ck4, ctk, x4k

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

.c4: Edmics Image
.c4: Clonk 4 Script
.c4m: Clonk Game Material Data
.ck4: Commander Keen Data File
.c4u: OpenClonk Update System Data
.ck: ChucK Source Code

Operating systems

DataTypes.net 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

If you find the information on this page useful, please feel free to link to this page.

https://datatypes.net/open-c4k-files

If you have useful information about the .c4k file format, then write to us!