A p21 file extension is related to the PAR recovery volume format used by QuickPar software.

There is one other file type using
the P21 file extension!

empty icon.p21 - Express STEP data model

Detailed description

Software that open p21 file

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P21 file extension - PAR recovery volume

What is p21 file? How to open p21 files?

File type specification:

Backup file type icon Backup file type

The p21 file extension is associated with the QuickPar, a tool for Microsoft Windows operating system that allows users to verify and recovery data developed by Peter B. Clements.

The p21 file stores PAR recovery volume part 21.

The default software associated to open p21 file:

QuickPar icon

QuickPar  Microsoft Windows software

Company or developer:
Peter B. Clements

QuickPar is a free utility for creating Parity Volumes (PAR version 2.0 and PAR2) using the Reed Solomon algorithm and for verifying and repairing files that are corrupt or disnamed. Creating PAR2 files, it can create split versions of the source files, split into sizes (exact multiples of the block size).

Help how to open:

Use QuickPar to work with *.p21 files.

How to convert:

Probably cannot be converted to anything else.

List of software applications associated to the .p21 file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open p21 file, edit p21 file, convert p21 file, view p21 file, play p21 file etc. (if exist software for corresponding action in File-Extensions.org's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting p21 files.

Programs that can create p21 file - PAR recovery volume

Programs supporting the exension p21 on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about QuickPar for create p21 file action.

Microsoft Windows:

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