With Filestar you get 0 different skills for working productively with Psion Record Voice Note (.prc) files.
About .Prc
Name
Psion Record Voice Note
Extension
.prc
Format
Binary
Category
Audio
Developer
Psion
Description
A voice note recorded with the Record application on EPOC devices (Psion Series 5, Revo and similar): an EPOC direct file store holding 8 kHz mono audio, written as 8-bit A-law or IMA ADPCM.