.TBB File

The tbb file extension is associated with the Microsoft Office, an office suite for Microsoft Windows and Mac OS X (macOS) that allows users to write documents, edit spreadsheets, make presentations etc.

The tbb file stores toolbar button. The Probably in older versions.

This tbb 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.