quicktime x not play flv mkv divx but converting

QuickTime Play AVI,WMV,FLV,MKV,DivX on macOS Monterey/Big Sur?

Can QuickTime X Play AVI, WMV, FLV, MKV, DivX in Sierra/El Capitan/Yosemite/Mavericks? After upgrading to macOS Monterey, Big Sur, Sierra, El Capitan, Yosemite or Mavericks, the Quick Look function to preview a movie file in thumbnail won’t work any more for files with extension of .avi, .wmv, .flv,. .mkv, .divx. When attempting to preview such • Read More »