EmailsGuru OST to PST Converter is a best tool to import OST file to Outlook PST format including emails, contacts, calendars, notes and all other items. The tool protects entire data integrity and original folder hierarchy throughout the conversion process. It is an independent tool thus no need to have Exchange Server, Microsoft Outlook or any other application in your computer. Users can smoothly install and run this tool on any Windows supported platforms. 

Get a free trial here- https://www.emailsguru.com/ost/pst/