One can utilize an excellent Office 365 import PST software like MailsDaddy PST to Office 365 Migration Tool to upload PST to Exchange Online mailbox. The user can insert PST hitting the Add file option and make use of the available options to move PST data to Office 365. The tool offers a free demo version so that anyone can use the software and get aware of its functionalities. It is a perfect solution to keeps all the information secure. Offers high-level performance upload PST data to Office 365 Exchange Online accounts.