How to Open PST File into Office 365? Complete Guide

In this write-up, we are going to show you how to open PST file in Office 365 using both manual and professional solutions. Also, here we will show you complete information about the both PST file and Office 365.

As we all know, Microsoft Outlook is an email client that already has several inbuilt features that save their data into PST format. Though, this desktop application is used by many users. Most of the users also use Microsoft Office 365. When it comes to open PST file without Outlook in Office 365, users don’t find a viable solution. So, here we are going to elaborate on some most effective methods to import PST files in Office 365.

About PST Format and Office 365

PST File: PST is a Microsoft Outlook application file extension. It allows users to access multiple account items configured to this application for each user through a private data file. Whenever a new item appears it will always save that data in the format of a .pst folder.

Office 365: is a web-mail, any new items will be saved to the database in Microsoft 365 and can only be accessed over the internet via a browser.

Manual Methods to Import PST Files in Office 365

First, you have to configure both Outlook and Office 365 accounts, which must be an IMAP configuration, if you don’t know the procedure then just open the application and hit the File tab and choose the “Add Account” option and enter the login credentials of Office 365, and then follow all the steps that are mentioned below:

Import PST File in Office 365

  1. Now again, launch the tool on the system. On the taskbar, click the File tab & then Open & Export then, Import/Export.
  2. Then, on the Import and Export Wizard, select Import from another program or file. Click Next to continue to open PST file in Office 365.
  3. After that, on the Import a File dialog box, select Outlook Data File (.PST). Click Next to continue the process.
  4. On the Import Outlook Data File dialog box, click on the Browse button to locate the PST file. After that select the PST file, and click Open.
  5. Finally, select the option “Do not insert duplicates”, and click Next to continue the process.

As we can see, it is a lengthy process, also Outlook email client must be installed on your computer properly. Sometimes data loss mistakes happen. This process includes a lot of technicalities. Non-technical users will not be able to use this method easily.

Professional Solution to Open PST File in Office 365

The BitRecover PST to Office 365 Migration Tool is a professional application. Through this application, users can directly open PST files in Office 365 webmail. With the help of this application, users can import selective folders from PST files into Microsoft 365 webmail user accounts Let’s discuss the working process of the software.

Download for Windows

Steps to Open PST File in Office 365

  1. First, install and run Import PST to Office 365 Tool on your system. Select PST files from your computer as a tool that provides dual options to add mailboxes.

    tool to Open PST File in Office 365

  2. Now, select from multiple Options to Browse PST File: Convert configured Outlook mailbox data, let me select my Outlook Mailbox data (Select File / Folder).

    Browse PST File

  3. After that, choose selective folders from the PST file for uploading.

    selective folders

  4. Thereafter, select Office 365 as the saving format to open PST file in Office 365 mailbox.

    Office 365

  5. Now, enter Office 365 account login credentials for continuing the migration process.


  6. Selecting this option will enable you to perform Mailbox Mapping i.e., Upload Different PST to Different Office 365 User Accounts.

    Mailbox Mapping

  7. If you are Office 365 Admin, you can Map every data file with desired Users. It will help to open different PST to different Microsoft Office 365 Users.
  8. Finally, log in to your Office 3665 webmail & view inserted PST files in your Microsoft Office 365 account.

    open PST file in Office 365

Import PST to Office 365 Tool – Benefits & features

  • Through this application, users can directly open PST files to Office 365.
  • Users can import PST files in Office 365 (OWA) account in batch.
  • By using the utility user can upload complete PST file data like Emails, Contacts, Calendars, and Tasks to Office 365 online
  • The tool can migrate selective folders from PST files into Office 365 webmail user accounts.
  • It shows all email folders before conversion to Exchange Online.
  • One of the best solutions is to import Outlook calendar to Office 365 online cloud accounts.

Final Verdict

In this blog, we have discussed open PST file in Office 365. Many users are facing issues in completing this process. So, here they will find both manual and professional techniques for doing this. But the professional method is a more effective method for users to open PST files in Office 365. The Demo version is also available in which users can save up to 25 files. A licensed version is also available in which users will get more features.