Want to know how to play a video file type you've not seen before on your Mac? You've come to the right place.

When you double-click a file on your Mac, the operating system will automatically open the file using the program assigned to that type of file. It is possible, though, to open the file using ...

Open the downloaded file and follow the on-screen instructions to install WineSkin on your Mac. If prompted, adjust your Mac’s security settings to allow the installation.

When you open a RAR file on your Mac, it will turn into a folder where you can access all of the decompressed files. Visit Business Insider's homepage for more stories.