: Use The Unarchiver , which is a free, highly-rated tool available on the Mac App Store.
: Many courses, such as those at Concordia University or Northwestern University , host lecture archives in .rar or .zip formats on their department websites or learning management systems like Blackboard or Moodle. Download Lecture10 rar
: On platforms like Udemy , you can download enabled lectures by clicking the gear icon at the bottom right of the video player. : Use The Unarchiver , which is a