A mjm file extension is related to the JDF a standard used to exchange information between apps associated with graphics industry.
There is one other file type using
the MJM file extension!
.mjm - JMF mime package
MJM file extension - JDF data exchange format
What is mjm file? How to open mjm files?
File type specification:
The mjm file extension is associated with the JDF, an industry standard designed to information exchange between different applications and systems in and around the graphic arts industry.
The mjm file stores various data used by JDF.
This mjm 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.