Open P21 file

The most commonly used .p21 file type: PAR recovery volume

What is p21 file? Understanding and opening p21 files

p21 file icon Are you facing difficulties opening p21 files on your computer, or wondering exactly what p21 file is?
We've got the best software solutions for opening p21 files effortlessly.

.p21 file type #1: PAR recovery volume

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

Further details

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.

Open p21 file with:

QuickPar icon

QuickPar

Utility for creating PAR archives

.p21 file type #2: Express STEP data model

Files with p21 file extension can also be found as 3D model data in ASCII format.

Further details

The p21 file extension is also used for files that contain 3D model data in ACSII text format. Used by JSDAI API.

Most likely some old format without support. No further information could be found.

Open p21 file with:

JSDAI for Eclipse

An API for Express data

What file extension actually is?

Simply put, file extensions are the characters after the dot in the computer file name, so for example document-name.pdf has file extension „pdf“. This helps Windows to identify which program should be used to open the file.

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