If you want to import a PST file into Office 365 download the software SysInspire PST Converter. They can import PST files directly in Office 365, Gmail, Yahoo. This software also imports PST file into 13 plus formats. With the help of this software, you can recover your lost email, contacts, calendar, appointments, and notes, etc. MS Outlook is not required in this software. Claim your money back within 30 days if the software is not performed according to you.