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How to Import Outlook Data File into Office 365? Simple Techniques

Published By Mohit
Tej Pratap Shukla
Approved By Tej Pratap Shukla
Published On March 12th, 2024

Are you struggling to import Outlook data file into Office 365? No need to worry anymore! here in this technical guide, we will help you to find the best solution to this query. This article is a complete walk-through of the same process. Just follow the below-mentioned steps and execute the task safely.

However, before getting into the process of import, let’s have a quick look at what this guide covers. 

Table of Contents:
  1. Create Outlook Data File to Import into Office 365
  2. Quickest way to Upload Outlook PST data to Office 365
  3. Methods to Import Outlook Data File to Office 365
  4. Expert Solution to Import Outlook Data File into Office 365
  5. Concluding Thoughts
  6. Frequently Asked Questions

So let’s first start with a quick look into the Outlook data file creation. 

Steps to Create Outlook Data File to Import into Office 365

Many of us are aware that Outlook stores emails, contacts, calendars, notes, journals, etc in two different locations. One is a Personal storage table (.pst) file on the hard disk & the other is in the mailbox which is located on the server (using Outlook with MS Exchange Server).

If you are unaware of the process to generate Outlook data files, then in this section you can learn how to create one. If in case you already have the Outlook data file (.pst) then skip this section and proceed with techniques to import Outlook file into Office 365 account. 

  1. Launch the MS Outlook for desktop and tap on the File tab in the top-left corner of the window. 
  2. Now, to export your Outlook data, click on the Open & Export option >> Import/Export. 
  3. Here, select the “Export to a file” option from the list and hit the Next button. 
  4. In the Import/Export wizard, choose the format of the item as the “Outlook data file (.pst)” option, then hit Next
  5. Now, select the Outlook mailbox that you wish to access in your Office 365 account. 
  6. Finally, browse a location for saving the exported data and hit the Finish button 

How to Quickly Upload Outlook PST data to Office 365

5 Short Steps to Import Outlook PST file to Office 365 Webmail:

  1. Download and Install Software on PC
  2. Select Source platform for Data Files
  3. Choose Destination and Workload
  4. Authenticate both the platforms
  5. Select Users and Start import.
    Download Tool Purchase Now

Methods to Import Outlook Data File to Office 365 in a Few Clicks

There are several possible solutions available for importing single/multiple Outlook data files into Office 365 user accounts. One way is to manually perform the migration using the Admin portal and another is to use an automated tool to import PST directly to Office 365 accounts simultaneously. 

Users can import Outlook data into Office 365 in the following ways:

  1. Migrate to Office 365 using Azure AzCopy
  2. Migrate Outlook Emails to Office 365 using Drive Shipping
  3. Use Professional Software

Method 1. Network Upload Using Azure AzCopy

  • Download & install Azure AzCopy & then copy the SAS (Shared Access Signature) URL.
  • After that, upload files to O365
  • Now, create the Mapping CSV file
  • After following the above steps create an Import job in Office 365 to easily import Outlook data file
  • Now, filter the data & start the PST import process.

Method 2. Drive Shipping to Migrate Outlook Data File to Office 365

The Microsoft Drive Shipping helps to move Outlook data to O365. By using this technique, the user can copy these PST files to Hard Disk & then send the respective drive to Microsoft. After this process, Microsoft will then copy the data from the disk drive to the cloud.

Method 3. Expert Solution to Import Outlook Data File into Office 365

Importing Outlook data files to Office 365 is not an easy task. The novice & non-technical users can find the manual procedure. Moreover, improper execution of manual solutions may lead to Office 365 import failure.  That is why users are advised to directly use a third-party solution like Outlook to Office 365 Migration Tool.

Elaborative Steps (With Screenshots) to Import Outlook Data File to Office 365 Mailbox

To initiate the steps of importing, first download and install the software.

Download Tool Purchase Now

  • Step 1. Provide the source as Outlook and the destination as Office 365 to the software.provide source and destination to import Outlook data file into Office 365
  • Step 2. Select a category from the workload selection and provide the date range filter category and date range for bulk migration of PST files
  • Step 3. Now provide the PST folder into the import folder path and validate the necessary permissions.import pst folder path and then validate permissions
  • Step 4. After that, enter the Office 365 admin email account and application ID and then validate the necessary permissionsenter office365 details into the software
  • Step 5. Now, on this screen, you will get some options through which you can add users from the source account.fetch user, import user and download template options
  • Step 6. Lastly, tap on Start Import to import PST into Office start import to migrate outlook data files into Office 365


Here, we have discussed simple steps to import Outlook data file into Office 365. By reading this blog, users will come to know how to easily move Outlook 2010 PST data to Office 365. The following steps are discussed in detail to execute this task without any data loss.

Users can refer to both manuals as well as automated solutions. If they want to keep away from the limitations, the user can go with the cited software for the migration process.

Frequently Asked Questions

Q. Can I Import multiple Outlook Data files into Office 365 Webmail?

Yes, the suggested software in the article would be the best choice if user want to import multiple Outlook data file to Office 365 webmail.

Q. Is there any limitation on the size of the Outlook data file that can be Imported?

No, the software doesn’t pose any limitation on the size of the PST file that you need to import

Q. How do I import archived Outlook data files into Office 365 mailbox?

Use Office 365 Import Tool to upload multiple archived PST files into Office 365 account mailbox.

Q. Can I import a single PST file into multiple Office 365 accounts?

No, you can only import a single PST file into one account.


By Mohit

Mohit is a Microsoft-certified expert who has assisted thousands of clients with Outlook & Microsoft Office 365 issues. He enjoys writing on email clients as well as data migration. He is always excited about giving troubled readers the most up-to-date knowledge, explanation, and refinements.