An xtabs file extension is related to the CFi Explorer tabset files.
XTABS file extension - CFi Explorer tabset data
What is xtabs file? How to open xtabs files?
File type specification:
The xtabs file extension is associated with the CFi Explorer, a file management tool for Microsoft Windows operating system that is used as replacement for Windows Explorer.
The xtabs file stores some kind of data used by CFi Explorer.
This xtabs 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.