Tips to open X4K file

Can't open the X4K file? You are not the only one. Thousands of users face similar problems every day. Below you will find tips on how to open X4K files as well as a list of programs that support X4K files.

X4K file extension

File Name XML4King Configuration Format
File Developer Optimal Performance
File Category Settings Files

The X4K file is supported on 1 operating systems. Depending on your operating system, you may need different software to handle the X4K files. Below is a summary of the number of programs that support and open the X4K file on each system platform.

Operating systems
  • 1
  • 0
  • 0
  • 0
  • 0
  • 0

What is X4K file?

The X4K file has been categorized as Settings Files. The author of this format is Optimal Performance. Settings Files consists of 1305 similar files. XML4King Configuration Format is supported by 1 operating systems. These systems consist of Windows, although it may occasionally be found on another system, it will be non-functional. It is recommended to use XML4King to handle this file. This is a program created by Optimal Performance B.V..

How to open X4K file?

An often recurring problem with XML4King Configuration Format is that X4K is not associated with the correct program file. Thus, when you open X4K, the program selection wizard or some other program starts. This can be quickly resolved by following the instructions below.

The first thing you should do is just "doubleclick" on the X4K file icon you want to open. If the operating system has an appropriate application to support it and there is also an association between the file and the program, the file should be opened.

Step 1. Install XML4King

In this case, you should first verify that the XML4King application is installed on the computer. To do this, enter the name XML4King into the system search engine. If it is not, installation may solve the problem, as most applications create file associations during installation. Below you will find a list of applications that support X4K files.

Programs to open X4K file

Remember to download programs supporting X4K files only from verified and safe sources. We suggest using the websites of software developers.

Step 2. Create association of XML4King with X4K files

If the application is or has been freshly installed, but the X4K file still does not use the XML4King program, it means no association. It is most convenient to call the context menu with the right mouse button and select Properties. The displayed window will contain information about the program that supports this type of file. Using the "Change" button we can select the desired program. The program should be visible in the window, otherwise it should be selected manually using the "Browse" button and the program installation directory should be indicated. Checking the "Always use the selected program ..." box will permanently associate the X4K file with the XML4King program.

Step 3. Update XML4King to the latest version

The fault may also lie with the XML4King program, it is possible that XML4King Configuration Format requires a newer version of the program. This can be done using the application (if it provides such options) or from the Optimal Performance B.V. website and install the latest version.

Step 4. Check for the following problems with the X4K file

Of course, it may happen that despite the above steps, the file still does not work. This could be due to the file itself, the cleanest issues are:

The affected file may be 0 KB or smaller than expected. Usually this applies to X4K files downloaded from the Internet in case the download did not finish properly. The only repair option is to download the file again.
The computer may have fallen victim to a computer virus or hacker. A quick virus scan using an up-to-date antivirus program should clear up any doubts. Alternatively, you can use the scanners available online. However, it is important to scan the entire system, not only the file X4K or the program directory. Sometimes virus-infected X4K files cannot be recovered, so make a backup in advance.
Older version of X4K file may not always be supported by the latest software version. These problems are known and are often very easy to fix using the software developers's website.
There can be many reasons for the failure. Depending on the type of file, it is necessary to repair it accordingly. Some programs offer the option of recovering data from damaged X4K files. You can restore the file from a backup or use Optimal Performance help.
The program can also signal the fact of encryption. The encrypted X4K files cannot be played on other computers than the one on which they were encrypted, they must be decrypted before using on another device.
Some operating systems do not allow file operations in certain locations, eg in system directories or directly on the system drive. While there is usually no problem reading such a file, it may not be possible to save it. It is best to move X4K to a different directory.
This problem only occurs with more complex files. Some file types can only be opened in one program at a time. Running programs (including those in the background) should be verified. If the error persists after closing other programs, wait for a while. Some anti-virus or backup software may occupy the X4K file for a certain period of time. If nothing helps, please reset the device.