Z10987654321X

I an trying to open one of the files used for xvm. the name of the file is xvm.xc I try to open it with the configuration editor on this website, http://www.modxvm.com/en/xvm-xvm-xvmconf-configuration-editor/ but it says, "Cannot find root config element("configVersion" must be present)". What does this mean and how do I fix it?