Files with the MOGG extension are used to store audio data. It is a container file that allows you to store multiple streams. In fact, this container stores many audio files saved in OGG format. MOGG files are made on the basis of analog recordings, for example from audio tapes. Their content is captured and digitally saved in DAW programs.

MOOG files were also used by Rock Band and Guitar Hero games. Such files are supported by many programs, for example Audacity or Free Audio Editor.