R21 File

A file with the .R21 extension is a file known as Split Multi-volume RAR compressed file archive (part 23). It belongs to the Compressed Files category. This format is associated with Eugene Roshal.

The reliable way to open a .R21 file is with software that recognises this exact format, rather than guessing from the file name. If you are not sure what created a file, our file identifier can read its first bytes and name the real format, even when the file has been renamed.

This page lists 7 programs that open .R21 files. A fully verified, hand-written description of this format is being prepared; until then, the details on this page are drawn directly from our database.