Files with var file extension could be in past found as dictionary files from Sterling Software programs. Looks like no longer used file type.
VAR file extension - Sterling Software data dictionary
What is var file? How to open var files?
File type specification:
The var file extension was also used for dictionary file types in old Sterling Software applications (now CA).
Most likely some old format without support. No further information could be found.
This var 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.