RAT file extension - PICS Platform for Internet Content Selection file
What is rat file? How to open rat files?
File type specification:
The RAT file extension is associated with the PICS (Platform for Internet Content Selection).
The PICS specification enables labels (metadata) to be associated with Internet content. It was originally designed to help parents and teachers control what children access on the Internet, but it also facilitates other uses for labels, including code signing and privacy.