Windows will open RAR files, but to convert files to RAR format, you can make use of WinRAR or these free online tools. We show you how!

This guide shows how to split or combine RAR files in Windows 11/10 using WinRAR, a popular free file compression/archiver software.

How to Combine RAR Files in WinRAR. The RAR format optionally splits large files into several compressed parts. This multi-part format makes distributing large business files to or from customers ...