The extension means the file is a compressed package. To view the "draft" or contents, you would typically need a tool like 7-Zip or WinRAR . Common Contents of Such Archives If this is a software or game "draft," it likely contains:
: A common name for independent game mods or projects. C.O.S. - Hangman.rar
: A group known for various early software utilities and digital art. The extension means the file is a compressed package