A rin file extension is related to the Retrieve 4GL and used for its database index.
RIN file extension - Retrieve 4GL database index
What is rin file? How to open rin files?
File type specification:
The rin file extension is associated with Retrieve 4GL, a development tool and programming language developed by Sage.
The rin file contains database indexes generated with the Retrieve 4GL solution.
This rin 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.