Question Can we convert MS Outlook PST to Office365 file?

Please provide comments and solutions that are helpful to the author of this topic.


New Member
Thread author
Dec 21, 2018
I want to convert PST file to Office 365 with a third party device. I used many tools but changes only some folders at a time. I have several folders that need to be changed. If you know about any other device that changes all the files in a while.


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New Member
Oct 21, 2019
Use this ToolsGround Outlook to Office 365 Migration tool which can Migrate all your messages, calendars, tasks, address books, and archives with the email migration tool. you should try this software without any issue.


New Member
Nov 14, 2019
I would recommend you to use one of the best tool for this conversion and also try the demo version of the utility. To know about one of the best utility. Refer to this blog and get a solution to the problem.


Level 85
Honorary Member
Top Poster
Content Creator
Jul 3, 2015
When you say "Office365 file", I assume you mean an OST file.
Are you trying to convert email messages? Are they from a webmail service such as gmail? You don't need to convert them. You just need to connect your webmail account to Outlook, in Office 365, and let Outlook do all the work for you.
If they are not from a webmail service, you can keep using your same old PST file, also with Office 365.

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