: If the archive contains older document formats, tools like LibreOffice are often more successful at opening them than standard modern office suites. How to Download Lectures to a Computer (if Enabled) - Udemy

Since .rar is a compressed format, you will need a utility to extract its contents. Here are the standard tools for different operating systems:

: 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.

To download a specific "Lecture10.rar" file, you typically need to access the official portal of your educational institution or the specific learning platform where the course is hosted. Based on common educational resources, here are the most likely ways to locate and download such a file: Common Sources for Lecture Files