New OST to PST converter free tool updated with more feature to easily open an off-line or unreadable ost file in MS Outlook with all email properties. An OST files emails saves in PST file with all email items with helps of OST to PST Converter software and successfully open OST file as PST file format in any editions of MS Outlook application. You can download this software and freely export emails from OST file to Outlook PST format.