C4K File Extension

What is C4K file?

C4K is a file extension commonly associated with Clonk Key Format files. Clonk Key Format format was developed by RedWolf Design. C4K files are supported by software applications available for devices running Linux, Mac OS, Windows. C4K file format, along with 1509 other file formats, belongs to the Game Files category. The most popular program for handling C4K files is Clonk Rage, but users can choose among 3 different programs that support this file format.

Programs which support C4K file extension

The list that follows enumerates programs compatible with C4K files, divided into 3 categories based on operating system on which they are available. Files with C4K extension, just like any other file formats, can be found on any operating system. The files in question may be transferred to other devices, be it mobile or stationary, yet not all systems may be capable of properly handling such files.

How to open file with C4K extension?

There can be multiple causes why you have problems with opening C4K files on given system. What is important, all common issues related to files with C4K extension can be resolved by the users themselves. The process is quick and doesn’t involve an IT expert. The list below will guide you through the process of addressing the encountered problem.

Step 1. Download and install Clonk Rage

Problems with opening and working with C4K files are most probably having to do with no proper software compatible with C4K files being present on your machine. This one is an easy one. Select Clonk Rage or one of the recommended programs (for example, Clonk Endeavor) and download it from appropriate source and install on your system. On the top of the page a list that contains all programs grouped based on operating systems supported can be found. The safest method of downloading Clonk Rage installed is by going to developer’s website () and downloading the software using provided links.

Step 2. Check the version of Clonk Rage and update if needed

If you already have Clonk Rage installed on your systems and C4K files are still not opened properly, check if you have the latest version of the software. Sometimes software developers introduce new formats in place of that already supports along with newer versions of their applications. If you have an older version of Clonk Rage installed, it may not support C4K format. The latest version of Clonk Rage should support all file formats that where compatible with older versions of the software.

Step 3. Assign Clonk Rage to C4K files

If you have the latest version of Clonk Rage installed and the problem persists, select it as the default program to be used to manage C4K on your device. The next step should pose no problems. The procedure is straightforward and largely system-independent

Change the default application in Windows

• Right-click the C4K file and choose Open with option
• Select Choose another app → More apps
• To finalize the process, select Look for another app on this PC entry and using the file explorer select the Clonk Rage installation folder. Confirm by checking Always use this app to open C4K files box and clicking OK button.

Change the default application in Mac OS

• Right-click the C4K file and select Information
• Proceed to the Open with section. If its closed, click the title to access available options
• Select Clonk Rage and click Change for all...
• Finally, a This change will be applied to all files with C4K extension message should pop-up. Click Continue button in order to confirm your choice.

Step 4. Check the C4K for errors

You closely followed the steps listed in points 1-3, but the problem is still present? You should check whether the file is a proper C4K file. Being unable to access the file can be related to various issues.

1. Check the C4K file for viruses or malware

If the file is infected, the malware that resides in the C4K file hinders attempts to open it. Scan the C4K file as well as your computer for malware or viruses. If the scanner detected that the C4K file is unsafe, proceed as instructed by the antivirus program to neutralize the threat.

2. Ensure the file with C4K extension is complete and error-free

If the C4K file was sent to you by someone else, ask this person to resend the file to you. The file might have been copied erroneously and the data lost integrity, which precludes from accessing the file. It could happen the the download process of file with C4K extension was interrupted and the file data is defective. Download the file again from the same source.

3. Verify whether your account has administrative rights

There is a possibility that the file in question can only be accessed by users with sufficient system privileges. Log in using an administrative account and see If this solves the problem.

4. Verify that your device fulfills the requirements to be able to open Clonk Rage

If the system is under havy load, it may not be able to handle the program that you use to open files with C4K extension. In this case close the other applications.

5. Verify that your operating system and drivers are up to date

Up-to-date system and drivers not only makes your computer more secure, but also may solve problems with Clonk Key Format file. Outdated drivers or software may have caused the inability to use a peripheral device needed to handle C4K files.

Do you want to help?

If you have additional information about the C4K file, we will be grateful if you share it with our users. To do this, use the form here and send us your information on C4K file.