While ZIP is an in-built functionality in Windows systems, RAR needs specialized software to compress the files and folders. At the receiving end, you would need similar software to extract the files.
If not, right-click and select Open with then Archive Utility. How to unzip RAR files on a Mac Comparable to ZIP files, Roshal Archive (RAR) is another file format where you're able to hold large ...
Using WinRAR or similar programs was the only way to open RAR files in Windows, as Microsoft has never added native support for the format. That is going to change very soon. As part of Microsoft ...