Files with cpk suffix may be mostly found as CRI Middleware package file format for several gaming consoles, including Nintendo or Sega.
There are 3 other file types using
the CPK file extension!
.cpk - Sega FILM/CPK file format
.cpk - Compiled Server Software Package file
.cpk - Microsoft Driver Test Manager log file
CPK file extension - CRI Packed File Maker middleware package
What is cpk file? How to open cpk files?
File type specification:
The cpk file extension is associated with CRI Middleware package file format used by various video game developers to store video game data (audio, textures, graphics, voices etc.) in one archive file.
CPK package file format is often used on video game consoles, like Xbox, Playstation, Nintendo, Sega etc.