R21 files: what are they and how do I open them?
Are you facing difficulties opening unknown files on your computer, or wondering exactly what this file is?
We've got the information and best software solutions for opening these files effortlessly.
.r21 file type #1: Split Multi-volume RAR compressed file archive (part 23)
Files with r21 extension are mainly RAR archives, or rather it is one part of a big RAR archive. You will need all the parts in order to extract the data.
Further details:
The r21 file extension is associated with WinRAR. Its one part of a multi-volume compressed RAR archive.
Some RAR files can be parts of a multi-volume sequences. In WinRAR you can split a huge archive to a few smaller files, which are called volumes.
Older versions of WinRAR used either:
- rar or exe (SFX) for first volume
- r01, r02, r03 ....etc. for any additional volumes
Or:
- rar or exe (SFX) for first volume
- 001, 002, 003 ....etc. for any additional volumes
The newer versions of WinRAR are using:
- rar or exe (SFX) for first volume
- .part1.rar, .part2.rar, part3.rar ....etc. for any additional volumes
In order to unpack the multi-volume RAR archive, you need to place ALL of the split parts in the same directory and start extraction of the first volume. The program will automatically use all of the parts to extract the content of the archive.
Open file with:
WinRAR
One of the oldest and most popular shareware file archiver and data compression utility
.r21 file type #2: Norton Ghost rar file
Files with r21 extension are associated with Norton Ghost software. It is a backup file saved in RAR compression file format.
Further details:
The r21 file extension is used by Norton Ghost. Backup file in RAR compression format. The .r21 file extension is most often used by WinRAR for split archive file. This file format is described at this site
Open file with:
Norton Ghost
Older disk cloning and backup utility from Norton