InthecasethatyourXDCfiledoesn'topen,itishighlylikelythatyoudonothavethecorrectsoftwareapplicationinstalledonyourPCtovieworeditXDCfileextensions.
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In the case that your XDC 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 XDC file extensions.