The 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 file

Detailed description

Software that works with p21 file extension

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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 p21 file type:

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 P21 files:

Currently there is no specific information available, about how to open this file extension.
For general information try to look at:
Basic info how to open backup files

How to convert file with extension P21:

Currently there is no specific information available.
For general information try to look at:
Basic info how to convert backup files

List of software applications associated to the .p21 file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux 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's database).

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

  • Create p21 file
  • Recover p21 file

Programs that can create p21 file - PAR recovery volume

Click on the link to get more information about QuickPar for create p21 file action.

Microsoft Windows:

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