X4K File Extension

What is X4K file?

Full format name of files that use X4K extension is XML4King Configuration Format. Optimal Performance defined the XML4King Configuration Format format standard. X4K file format is compatible with software that can be installed on Windows system platform. X4K file belongs to the Settings Files category just like 1305 other filename extensions listed in our database. The software recommended for managing X4K files is XML4King. XML4King software was developed by Optimal Performance B.V., and on its official website you may find more information about X4K files or the XML4King software program.

Programs which support X4K file extension

Programs that can handle X4K files are as follows. Files with X4K suffix can be copied to any mobile device or system platform, but it may not be possible to open them properly on target system.

How to open file with X4K extension?

Being unable to open files with X4K extension can be have various origins. Fortunately, most common problems with X4K 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 X4K files.

Step 1. Install XML4King software

The most common reason for such problems is the lack of proper applications that supports X4K files installed on the system. The solution to this problem is very simple. Download XML4King and install it on your device. Above you will find a complete listing of programs that support X4K files, classified according to system platforms for which they are available. The safest method of downloading XML4King installed is by going to developer’s website (Optimal Performance B.V.) and downloading the software using provided links.

Step 2. Update XML4King to the latest version

You still cannot access X4K files although XML4King is installed on your system? Make sure that the software is up to date. It may also happen that software creators by updating their applications add compatibility with other, newer file formats. The reason that XML4King cannot handle files with X4K may be that the software is outdated. The most recent version of XML4King is backward compatible and can handle file formats supported by older versions of the software.

Step 3. Assign XML4King to X4K files

If the issue has not been solved in the previous step, you should associate X4K files with latest version of XML4King you have installed on your device. The method is quite simple and varies little across operating systems.

Change the default application in Windows

• Right-click the X4K file and choose Open with option
• Click Choose another app and then select More apps option
• To finalize the process, select Look for another app on this PC entry and using the file explorer select the XML4King installation folder. Confirm by checking Always use this app to open X4K files box and clicking OK button.

Change the default application in Mac OS

• Right-click the X4K file and select Information
• Open the Open with section by clicking its name
• Select XML4King and click Change for all...
• A message window should appear informing that This change will be applied to all files with X4K extension. By clicking Continue you confirm your selection.

Step 4. Ensure that the X4K file is complete and free of 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 X4K file. It is probable that the file is corrupted and thus cannot be accessed.

1. Check the X4K file for viruses or malware

If the X4K is indeed infected, it is possible that the malware is blocking it from opening. Scan the X4K file as well as your computer for malware or viruses. X4K file is infected with malware? Follow the steps suggested by your antivirus software.

2. Verify that the X4K file’s structure is intact

If you obtained the problematic X4K file from a third party, ask them to supply you with another copy. The file might have been copied erroneously and the data lost integrity, which precludes from accessing the file. When downloading the file with X4K extension from the internet an error may occurred resulting in incomplete file. Try downloading the file again.

3. Verify whether your account has administrative rights

Some files require elevated access rights to open them. Log in using an administrative account and see If this solves the problem.

4. Check whether your system can handle XML4King

If the system is under havy load, it may not be able to handle the program that you use to open files with X4K extension. In this case close the other applications.

5. Check if you have the latest updates to the operating system and drivers

Up-to-date system and drivers not only makes your computer more secure, but also may solve problems with XML4King Configuration Format file. It is possible that one of the available system or driver updates may solve the problems with X4K files affecting older versions of given software.

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