Installing in Mac OS X Download VLC installation file from the location mentioned above (VideoLAN website).. Locate the downloaded file which will be named something like vlc-2 1 0 dmg; Open the file.. After verifying the contents of the file, it will open onto onto meaning ontogeny onto onto, onto function, ontology, onto vs on to, onto meaning, onto vs into, ontological meaning, ontopreplica, ..