XML4King configuration file
File type: Configuration file
The x4k file extension is used by XML4King for configuration files.
File type category:
Configuration file
Date updated: October 2, 2026
XML4King is software for Microsoft Windows that converts data into XML format.
The x4k file stores configuration data used by XML4King.
Open an x4k file with XML4King on Microsoft Windows. The software is the appropriate program for reading and using its configuration data.
A text editor may display the file's contents, but editing it outside XML4King can affect the software's configuration.
An x4k file is a configuration file, not a data format intended for conversion. XML4King uses it to store settings, so it normally should be kept in its original format.
Software apps that manage or store settings in x4k files:
Microsoft Windows
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