PowerPacker
From Just Solve the File Format Problem
				
								
				
				
																
				
				
								
				PowerPacker (also spelled Power Packer) is a file compression utility and compressed file format for Amiga computers. It was developed by Nico François, and distributed as shareware.
Identification
PowerPacker files apparently begin with ASCII "PP", followed by a two-digit version number. Known signatures are "PP11" and "PP20".
Software
- aminet/util/arc → ppunpack*
 
Sample files
- Many, but not all, of the .pp files at http://cd.textfiles.com/amigagames/ag-199501/MultiMedia/Diskmags/ ...
 - PPUnpackWOS.lha → sf.pp