File Extension Library

.R21 File Extension

  • Developer by: Eugene Roshal
  • Category: Compressed Files
  • Format: Binary

What are .R21 files and how to open them?

Can't open .R21 file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .R21 file.

What is a .R21 file extension?

.R21 file extension is created by Eugene Roshal. .R21 has been classified as Compressed Files. The format of .R21 file is Binary.

.R21 is WinRAR Split Archive Part 21

File created as part of a multi-volume compressed .RAR archive; stores part 21 of a compressed, split archive; used for reconstructing an original file with the other split archive parts.

RAR multi-volume archives are created using the extensions ".r00" through ".r99," where the digits represent the archive file sequence. Therefore, R21 is actually the 22nd part of the split archive.

List of all softwares that can open the WinRAR Split Archive Part 21
WinRAR 5
Smith Micro StuffIt Deluxe for Windows
Corel WinZip 23
Whirling Dervishes Alpha ZIP
Smith Micro StuffIt Deluxe 16
Incredible Bee Archiver

How to fix problems with .R21 files

  1. You need to update the application that you normally use to open .R21 files. Only the latest version of the software supports the current .R21 file format
  2. You need to check the .R21 file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)