.R01 File Extension

An R01 file is part one of a compressed archive split into several parts by WinRAR or RAR. It is typically created for saving a large archive on multiple disks. R01 files are followed by the .R02 file, .R03 file, and so on up to R99 depending on the size of the archive.

File archives with ".Rxx" file extensions may be created with either WinRAR for Windows or RAR for Mac and Unix. R01 files may also be opened by other compression programs, such as 7-Zip, Corel WinZip, and Incredible Bee Archiver.