The Kernel Exchange Suite When Microsoft Exchange is backed up using CTERA, restoring an individual folder for an individual user is not possible directly. CTERA recommends using the Kernel Exchange Suite to restore individual items from the CTERA backup.
In addition to restoring files from a CTERA backup, the Kernel Exchange Suite provides the following functionality:
You can download a trial version or purchase the full version from https://www.nucleustechnologies.com/fullverexetext/EDBReExchRep.php.
You can view a video show how to convert an EDB file to a PST file: