Advance Outlook OST to PST converter program smoothly convert Outlook OST to PST from all versions of Outlook OST file (2000, 2003, 2007, 2010 and 2016). Use this efficient Outlook OST file converter program for unfailing recovery and conversion of Outlook OST to PST in exact TXT, RTF and HTML fromat. It re-create large sized OST file and shift OST to PST against any data loss.