The best way to import OST files to Gmail using MailConverterTools OST to PST Converter, this tool efficiently imports OST files into Gmail. This tool recovers all mailbox data, Like- emails, contacts, calendars, notes, journals, attachments, etc. Apart from this, the software helps the user to import OST files to Gmail and many other email clients such as Thunderbird, Office 365, Yahoo Mail, IMAP, etc. Moreover, this software is reliable and easy for both technical and non-technical users.