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R21 file is typically associated with WinRAR archive, WinRAR archive. You can open R21 with following applications:

  • WinRAR
  • WinRAR

Open R21 on Windows OS

  • Locate R21 file in Windows Explorer and right-click on it.
  • Look for the "Open with" menu option in the popup menu. If you open this menu you will see list of the applications which can open R21 file.
  • If there are no programs which can open the R21 file are installed you will see "Open with..." button in the popup menu. Click on it.
  • Dialog will open with Windows OS suggestion about what application can open R21 file.
  • If you do not see the application which correctly matches the file try to search the internet for one of the apps mentioned above or look for technical file description below. Each description have "Application name" in it which can open the R21 file.
  • If "Application name" is missing look for the "Windows Object" and "Executable command" fields because they typically contain application which can open R21 file.

Open .r21 File and WinRAR.

File Extension.r21
DescriptionWinRAR archive
Sample File Name[Sample File].r21
Application NameWinRAR
Windows ObjectWinRAR
Executable Command To Open .r21 FileC:\Program Files (x86)\WinRAR\WinRAR.exe "%1"
Mime Type
Links
  • How to open R21 File instructions on extensionfile.net
  • Placing it here to fix Firefox 2.0 layout links

Open .r21 File and WinRAR.

File Extension.r21
DescriptionWinRAR archive
Sample File Name[Sample File].r21
Application NameWinRAR
Windows ObjectWinRAR
Executable Command To Open .r21 File"C:\Program Files\WinRAR\WinRAR.exe" "%1"
Mime Type
Links
  • How to open R21 File instructions on extensionfile.net
  • Placing it here to fix Firefox 2.0 layout links

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