Choose the destination folder in your Office 365 account, then click Finish. The data will begin importing into your Office 365 mailbox. After completion, verify the migrated items for accuracy and completeness. Import PST File: Go to File > Open & Export > Import/Export. Choose Import from another program or file, select Outlook Data File (.pst), and then browse to your PST file. . https://www.vartikasoftware.com/product/vs-pst-to-office365-converter.html