.P21

.P21 file extension

This is the basic program to work with .P21 extension

QuickPar

QuickPar PAR Recovery Volume

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. It can be used to verify that a set of files have not been corrupted, or for reconstructing corrupt files, if you have sufficient Parity Volumes to match the missing or corrupt files. .. (more)

The program works with the following extensions: p14, par, p15, p16, sfv, p12, p17, p01, p19, p09, p20, md5, p21, p00, p22, p02, p23, p03, p24, p04, p25, p05, p26, p07, p27, p08, p28, p10, p29, p11, p30 and par2