Many People have a same problem when they want to convert their PST file into Office 365 because they don't know which one the tool perfect for them. then I want to suggest you try this amazing tool, This Regain PST to Office 365 migration tool can automatically import Outlook PST files to Office 365 including with all email properties like contacts, attachment, sents items etc.
CheckOut this tool free demo version from here: http://www.psttooffice365migration.emltopstutility.com/
The software is easy to use and graphical user interface and it completes the migration. Add PST files, add office 365 accounts, Map pst file to mailbox and Import PST files. Non-technical user can easily perform this process without facing any problem.
There are several methods available in the market that help your file convert PST to Office365. You can also use the manual method but its lengthy process. After a long process, you will be able to convert PST file to Office 365. If you want to convert all the files at the same time, then you need to process any smart way. So you need a third party tool that can change all the files at the same time.
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