I would like to suggest you to use this Regaintechnologies Outlook PST Recovery tool. This tool repairs, recovers and restores emails and other related data items like attachments, calendars, appointments, contact, journals, and notes etc. from corrupt, damaged, or broken PST files. you can also save your Recovered PST file to New PST and many other file formats like: MBOX, EML, MSG, EMLX, vCal and vCard format. this software also allows user to Export PST file into Office 365 Account and Live Exchange Server.