Convert OST to PST software is able to recover emails from inaccessible OST files created using MS Exchange Server 5.0, 5.5, 2000, 2003, 2007 2010 and 2013 versions and then easily Export OST files to Outlook PST database via OST to PST Converter Program. Orphan OST file can also recover and convert into PST file by using the Export OST Tool.