Tips: QuickTime Player 7 may help if you have older media formats or workflows that require an older version of QuickTime Player. Part one: Install and Run QuickTime 7 Pro on Mac OS X El Capitan Part two: QuickTime 7 Pro alternative to play /convert video on El Capitan Part one: Install and run QuickTime 7 Pro on Mac OS X El Capitan Keep that in mind, the following article will be divided in two parts: However, there are still some many file formats such as H.265/HEVC, MXF, XAVC/XAVC S, MKV, FLV, VOB or Blu-ray & DVD disc that QuickTime 7 Pro can't play or convert. View personal media in a wide range of file formats or convert your files to different formats. For media enthusiasts, after upgrading to Mac OS X El Capitan, you are fortunately enough to still have the chance to install and run QuickTime 7 Pro on this new operating system to edit clips,