PRZ is a file extension used by files created with a DOS tool Freelance Graphics. PRZ file were used to store simple slideshows and presentations. A single PRZ file was no larger than 50 KB so it could easily fit into a floppy disk.

PRZ format was developed by Lotus Software, which was later bought by IBM. Freelance Graphics program debuted in 1986. PRZ file are no longer supported by any modern office software tools.