You can also use the Xtraxtor tool to import PST to Office 365 along with attachments. The software will effortlessly import corrupted, damaged or large PST file into Office 365 mailbox without affecting your data. You can try the demo version of the software to know more about it.
Steps to Import PST to Office 365 Mailbox -
1. Run Xtraxtor on your system.
2. Click on Open >> Data File >> Choose PST file.
3. Click on Export and select Office 365.
4. Enter your Office 365 login details and hit the Save button.
Done! Here complete the PST to Office 365 migration in a few simple clicks. https://xtraxtor.com/blog/import-pst-to-office-365/