With FileMagic, opening XCU files is simple.
The software interprets the XML format of the file, presenting the contents in a user-friendly format. For those who are not experienced in XML syntax or data structure, the application displays the data in a way that is accessible. https://www.filemagic.com/en/settings-files/xcu-file-extension/how-to-open-xcu-files-quickly-and-easily/