How to open X4K file format? (XML4King Configuration File)

Problems with opening X4K files occur very often among users. Unfortunately, not everyone is aware that the basic and usually the most common problem is the lack of an installed software to handle the X4K file. Its full name is XML4King Configuration File and the company responsible for its development is Optimal Performance. Your X4K file has probably an encoded information from the Settings Files category. If you want to view its contents, open, edit or convert the X4K file to another format, install one of the applications from the list, which is presented below on this page. Can’t you still open your X4K file? Please, visit file extension x4k where you will find more information.

Programs using this file extension

Windows
– XML4King