PST to Office 365 Migration Tool
Step 1: Run the Tool and click on Add File button to browse the Outlook PST file. You can also search for it file by clicking on Search icon. If you want to use Bulk Export option then check this link: http://www.mailsdaddy.com/pst-to-office-365-migration-tool/bulk-export.php
Step 2: The application will generate preview of entire PST file items including attachment. Click on Export Button.
Step 3: Click on Export button, Choose the appropriate options
Step 5: The software will start the migration and will show you the progress
Step 6: The application will generate the confirmation message after completion of the process.