.Y09 File

The y09 file extension is associated with the Paradox, a relational database management system sold by Corel Corporation, which is part of some editions of Corel WordPerfect Office suite.

The y09 files contain secondary index information.

This y09 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.

How to open:

Probably not meant to be accessed by the user.

How to convert:

Probably cannot be converted to anything else.