If QuickTime Player can‘t open an audio or video file

Older or specialized media formats might require different software. 

QuickTime Player icon



QuickTime Player (version 10) can create, play, edit, and share many media formats, including many that are no longer in common use. In OS X Mavericks and later, QuickTime Player converts certain older formats that it doesn't play back directly.

If QuickTime Player doesn't open your file, search the Mac App Store for a third-party media player that supports the format of your file. You can search using the format name or the filename extension (such as .avi, .wmv or .mkv).

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