A do0 file extension is related to the Sysinfo and used for its data files. Probably obsolete file format.
DO0 file extension - Sysinfo data
What is do0 file? How to open do0 files?
File type specification:
The do0 file extension is associated with the Sysinfo, probably obsolete or very rare used program.
The do0 file contains Sysinfo Sa51swe data.
Most likely some old format without support. No further information could be found.
This do0 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.