Try outlook ost to pst converter software which is the right way to restore ost file with emails, contacts, calendars, tasks, journals etc. The converted outlook ost files save in PST format and at the user’s specified location. The ost to pst conversion tool is the smoothly conversion ost file to pst file with +20 file formats such as- pst file, Office 365 account, pst file, EML, EMLX, MSG, HTML, MHTML, MBOX, VCF, CSV, ICS, Live, Exchange Server, Zimbra, Gmail, Yahoo, and etc. The outlook ost file conversion tool could be any suitable location in the system. If you are interested in the tool, you can consider its free demo version.