A .rar file is a file. Unlike a standard folder, which simply holds files in their original size, a RAR file is a "compressed" container. Think of it like a vacuum-sealed bag: it takes multiple items, sucks out the extra space, and turns them into one compact package. Why Use RAR Instead of a Normal Folder?
7-Zip is a great open-source alternative that can extract RAR files on almost any system. A Quick Security Warning How To Open, Create, and Convert RAR Files - AVG Antivirus folder.rar
The most popular choice is WinRAR, the original software designed for this format. Simply right-click any folder and select "Add to archive..." to create your folder.rar . Why Use RAR Instead of a Normal Folder
You can password-protect these archives to keep sensitive contents private. Simply right-click any folder and select "Add to archive
To handle these files, you generally need third-party software because Windows and macOS don't always support the RAR format natively for creation.
RAR files use advanced algorithms to shrink data more effectively than standard ZIP files.