Searching for a method to migrate Outlook items from PST files to an Office365 account? If yes, then you can get the best answer for this, by reading this article. Through this blog post, we will show you “how to upload/import PST to Office 365 mailbox?”.

Outlook is a well-known and most-used desktop-based mail client offered by the brand Microsoft. With this mail client users can easily share emails and also can perform many other tasks like- contact-calendar management, creating tasks, notes, and more.

MS Outlook also offers users store copies of user’s mailbox items and the tasks that are performed by users inside the data file “PST”. All sent/received emails, contact, calendars, tasks, notes, journals, and other mailbox items Outlook preserves in PST files.

Microsoft has also introduced the web version of MS Outlook which we know as Outlook 365/Offie365. With this service, users can directly access their Outlook email profiles with web browsers. Also, there are several more benefits of the Office365 application by which users are shifting from Outlook desktop to Office365 service.

Also Read: – How To Open A PST file In Gmail to Read Outlook Emails?

Benefits of moving from Outlook desktop to Office365 –

In comparison to Outlook, there are many advantages of using Office365 service, like: –

  • Access through a web browser: Outlook is a desktop-based application that users can only use from a single machine. On the other hand, Outlook 365 is a cloud-based service; users can simultaneously access their email profiles by any web browser from multiple computers.
  • Storing data on a cloud server: – Outlook uses users’ machines to save users’ profile data locally. But with Office365 service users get the facility to store their mail profile data on a cloud server. It will assist users in freeing up storage space from their local drive.
  • No specific O/S requirement: – For using Outlook users will need a computer with Windows O/S. On the other hand, users can access Office365 service from any device by just using a web browser.

Quick solution to migrate PST file to Office 365 account

Smartly export Outlook mailbox items from PST file to Office365 account, by using the program called eSoftTools PST to Office365 Converter Software. It assists users in exporting data from single as well as multiple PST files to Office365 mailboxes at once.

All Outlook mailbox items users can export from PST files including- email, contacts, calendar, and more. It will export all data with their complete information to Office365 account. Users can also save Outlook PST file data in the Office365 account’s Primary mailbox and a custom folder (newly created). Also, there are many smarter functions available in this tool to perform quick migration.

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How to Upload/ Import PST to Office 365 mailbox? Quick Method

On your Windows computer, download and install eSoftTools PST to Office365 Converter software, then follow these below-given steps: –

  • Launch the PST to Office365 Migrator and press the Select PST button.
  • Choose single file conversion or bulk file conversion mode and click on Next.
  • Add Outlook PST files into the software and press the Start Scanning button.
  • Scan PST files and extract all their inner mail folders and items.
  • Preview Outlook mailbox items and choose needed folders from the PST file.
  • Press the PST to Office365 Migrate button from the menu bar.
  • Input your Office365 account email address and apply other needed settings: –
    • Import options – Choose any one of these options for saving PST file data in your Office365 account.
      • Export in Primary Mailbox: – Move Outlook items from PST files, to the primary mailbox of the offie365 account. (In the same folders)
      • Input folder name for migration: – Add a new folder in Office365 account with a custom name to preserve all exported PST file data.
    • Mail Filtering: – Choose the date of emails that you want to export from the PST file.
    • Create Log File: – Generate a log with all migration details and save it to the desired location.
  • Hit on the Convert button, sign in with the Office365 account, and start the migration.


Users can perform the instant PST files to Office36 migration with the aid of the method shown above. Get the assistance of the above given method and straight-forwardly move PST file data to Office365 mailbox using PST to Office365 converter. Also, try the demo edition of this software and perform a quick migration of 25 items from PST file free of cost.

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