XAB file extension

Microsoft Mail address book

Run a free instant scan for .XAB file errors

A .XAB file is known as a Microsoft Mail address book.

This file extension was added to our database by a visitor to this site, but no further information was provided. We have yet to investigate the XAB file extension any further, or there was simply not enough information available at the time to report accurately on this format.

However, it is possible that other file formats exist that use the XAB extension, so please let us know if you do not think this extension matches the file format you are looking for.