To Export OST to PST format?Then I would like to suggest you can also try ZOOK OST to PST Coverter. The tool is capable to migrate OST to PST format to move calendars, emails, attachments, contacts, notes, tasks, to-do list, etc. into PST format. It is the most efficient solution to export OST to PST format and import offline storage data(.ost) file into Microsoft Outlook. The tool can easily support all the latest versions of Microsoft Outlook i.e. Outlook 2016, 2013, 2010, 2007, 2003. Users can also test and check the capability of the utility which offers to convert 25 items from each folder of OST files into PST format without losing any data.