OST to PST converter tool is known for safe and accurate recovery of OST file. It takes few minutes to recover and convert OST file and its associated data items such as emails, contacts, notes, drafts, appointments, tasks, attachments, journals, etc. to PST thoroughly. It also facilitates user to convert OST file to various email server extensions like Lotus Domino, Novell GroupWise, MS Exchange Server, Gmail, Yahoo, Outlook.com, AOL, etc.
Try its demo version: http://www.converter.osttopsttools.net