Add spaces: InthecasethatyourXCFGZfiledoesn'topen,itishighlylikelythatyoudonothavethecorrectsoftwareapplicationinstalledonyourPCtovieworeditXCFGZfileextensions.
In the case that your XCFGZ file doesn't open, it is highly likely that you do not have the correct software application installed on your PC to view or edit XCFGZ file extensions.