Software to convert OST to PST. OST file to PST file conversion was never easy before. Migrate each and every item of .OST file easily and accurately to .PST file. Export emails, contacts, calendars, journals, images, email data, email properties, notes, tasks and schedules etc to Personal Storage File (.PST) of Microsoft Outlook. Our software with dual features of ost recovery and ost to pst conversion helps an exchange administrator perform ost recovery and convert working ost file to pst file. Save the converted items of offline storage file to .MSG, .EML and .PST file format. It supports conversion from .ost files created with MS Exchange Server 2007, 2003, 2000, 5.5, 5.0