What is a .X4K File And How To Open It – Optimal Performance

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Have you downloaded a file with .x4k extension, but you have never seen this extension before? Perhaps you know what the file is, but you simply don’t know how to open it. That’s why we have made this article! You will learn how to open the .x4k file extension on various systems, what it is and how to work with it.

What is a .X4K file?

The file extension .X4K stands for XML4King Configuration File. The creator of this file extension is Optimal Performance. The file has the text format, and it is a settings related file.

What to know

There is currently 0 software that can open the .x4k file on 0 platforms.


There are currently no software associated with this file extension, if you have any information please let us know.