What is .CPK file extension?
Game package file used by games created with the CRI Middleware packaging software; can store graphics, audio, and other game data; used as a container for game files.
CRI Middleware technology is used to package data for various game console systems, including those from Microsoft, Nintendo, Sega, and Sony.
You can see a list of software programs here on www.easyfileopener.org that can open this file type so that you don’t need to search for it on the web. You can then open your file with this extension using a software listed below.