An mp7 file extension is related to Portable Media Player 7 PMP device sold around 2009.
There is one other file type using
the MP7 file extension!
.mp7 - NI Multisim v7 project
MP7 file extension - Portable Media player 7 data
What is mp7 file? How to open mp7 files?
File type specification:
The mp7 file extension is reported to be used in Portable Media Player 7 multimedia device for video files.
Portable Media Player was one of the PMP devices sold around 2009, average in nature and overpriced it didn't met much success.
This mp7 file type entry was marked as obsolete and no longer supported file format.
This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.