What this program does is that is basically renames the files in the decrypted home beta into the correct format. It saves a huge amount of time if you are going through the files, as you don't have to view the hex file for each file to determine what the correct extension is.
The instructions are simple, to use it just place one of the EXE files in one of the extracted folders that contains the numbered home files (i.e. place the exe in USRDIR-NPBOOT folder for example and run it.)
A simple yet time saving application