https://mattkprovideo.com/2019/03/03/what-is-an-omf-file/

What are we talking about when we taken an  OMF file?

OMF stands for Open Media Framework Interchange

An audio file saved in a standard audio/video format based on the Open Media Framework Interchange (OMFI), a standardized interchange file format.

It can be exported from digital video editing or audio workstation (DAW) software and is commonly used to share project data between multiple applications.