C4U file icon

C4U File Extension

OpenClonk Update System
  • Developer
    Open Clonk Development team
  • Category
  • Popularity
    3.3 (3 votes)

What is C4U file?

Full format name of files that use C4U extension is OpenClonk Update System. OpenClonk Update System specification was created by Open Clonk Development team. C4U file format is compatible with software that can be installed on Windows system platform. C4U file belongs to the Game Files category just like 1509 other filename extensions listed in our database. The software recommended for managing C4U files is OpenClonk. OpenClonk software was developed by Open Clonk Development team, and on its official website you may find more information about C4U files or the OpenClonk software program.

Programs which support C4U file extension

Programs that can handle C4U files are as follows. Files with C4U suffix can be copied to any mobile device or system platform, but it may not be possible to open them properly on target system.

Programs that support C4U file

Windows Windows

How to open file with C4U extension?

Problems with accessing C4U may be due to various reasons. Fortunately, most common problems with C4U files can be solved without in-depth IT knowledge, and most importantly, in a matter of minutes. We have prepared a listing of which will help you resolve your problems with C4U files.

Step 1. Install OpenClonk software

Install software to open C4U file Problems with opening and working with C4U files are most probably having to do with no proper software compatible with C4U files being present on your machine. To address this issue, go to the OpenClonk developer website, download the tool, and install it. It is that easy Above you will find a complete listing of programs that support C4U files, classified according to system platforms for which they are available. The safest method of downloading OpenClonk installed is by going to developer’s website (Open Clonk Development team) and downloading the software using provided links.

Step 2. Update OpenClonk to the latest version

Update software that support file extension C4UIf you already have OpenClonk installed on your systems and C4U 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. This can be one of the causes why C4U files are not compatible with OpenClonk. All of the file formats that were handled just fine by the previous versions of given program should be also possible to open using OpenClonk.

Step 3. Assign OpenClonk to C4U files

If the issue has not been solved in the previous step, you should associate C4U files with latest version of OpenClonk you have installed on your device. The process of associating file formats with default application may differ in details depending on platform, but the basic procedure is very similar.

Associate software with C4U file on Windows

Change the default application in Windows

  • Choose the Open with entry from the file menu accessed by right-mouse clicking on the C4U file
  • 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 OpenClonk installation folder. Confirm by checking Always use this app to open C4U files box and clicking OK button.
Associate software with C4U file on Mac

Change the default application in Mac OS

  • From the drop-down menu, accessed by clicking the file with C4U extension, select Information
  • Proceed to the Open with section. If its closed, click the title to access available options
  • From the list choose the appropriate program and confirm by clicking Change for all....
  • Finally, a This change will be applied to all files with C4U extension message should pop-up. Click Continue button in order to confirm your choice.

Step 4. Ensure that the C4U file is complete and free of errors

If you followed the instructions form the previous steps yet the issue is still not solved, you should verify the C4U file in question. Problems with opening the file may arise due to various reasons.

Check C4U file for viruses
1. The C4U may be infected with malware – make sure to scan it with an antivirus tool.

If the file is infected, the malware that resides in the C4U file hinders attempts to open it. Scan the C4U file as well as your computer for malware or viruses. C4U file is infected with malware? Follow the steps suggested by your antivirus software.

2. Ensure the file with C4U extension is complete and error-free

Did you receive the C4U file in question from a different person? Ask him/her to send it one more time. During the copy process of the file errors may occurred rendering the file incomplete or corrupted. This could be the source of encountered problems with the file. If the C4U file has been downloaded from the internet only partially, try to redownload it.

3. Ensure that you have appropriate access rights

Sometimes in order to access files user need to have administrative 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 OpenClonk

If the system is under havy load, it may not be able to handle the program that you use to open files with C4U extension. In this case close the other applications.

5. Ensure that you have the latest drivers and system updates and patches installed

Up-to-date system and drivers not only makes your computer more secure, but also may solve problems with OpenClonk Update System file. It may be the case that the C4U files work properly with updated software that addresses some system bugs.

Do you want to help?

If you have additional information about the C4U 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 C4U file.

Top File Extensions
Show more
File Extension of the day
wotreplay icon


World Of Tanks Replay Format

File with extension contains a World of Tanks multiplayer mode battle replay, which stores such data as: Positions and information about players...

Last updated