Try Best PDS OST to PST converter software convert 2003 ost to pst mailbox and quickly recover inaccessible outlook 2003 OST file into PST (MS Outlook) file. Outlook 2003 OST to PST conversion utility nicely repair unlimited size of OST file, recover orphaned OST files and convert 2003 outlook OST to PST without changing its original formatting style. Now, you can perfectly Convert OST email PST with exact format of TXT, RTF and HTML.