InthecasethatyourKMYfiledoesn'topen,itishighlylikelythatyoudonothavethecorrectsoftwareapplicationinstalledonyourPCtovieworeditKMYfileextensions.
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In the case that your KMY 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 KMY file extensions.