Simply move the Outlook OST data (emails, contacts, calendars, tasks, appointments, and attachments, etc) to PST format using this amazing solution named A2Z Migration for OST to PST. It also helps to migrate the OST to MSG, EML, HTML, RTF, and MHTML, etc apart from PST file format. The application allows us to repair or recover the corrupted, orphaned, damaged, and soft-deleted items of the OST and convert it into PST.

Using this solution a user can add the multiple OST and the software give you the facility to see the preview of the data but it’s an optional feature. After getting the Preview you can move complete or selected data of the OST to PST. And also can segment the large OST to multiple small PSTs by the Split PST option. 

You can get this advance OST to PST Converter license at a very reliable cost of $10.14.