.0ha is Maestro Mama data
Key Features: .0HA File Extension
What is an .0HA file?
The 0HA file extension seems to have been in the past used by Maestro Mama program for one of its default file types.
Most likely some old format without support. No further information could be found.
This 0ha 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.