A lo file extension is related to the Interleaf compiled Lisp data format.
LO file extension - Interleaf compiled Lisp data
What is lo file? How to open lo files?
File type specification:
The lo file extension is associated with some applications, that are developed by the BroadVision company.
Most likely some old format without support from developer. No further information could be found.
This lo 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.