How to Import PST to Office 365 or Microsoft 365?

PST files, also known as Personal Storage Tables, are used to store Outlook emails, contacts, calendar items and other Outlook components. PST files are typically used by users who want to store their Outlook data in a local format or on a backup drive.

As more organizations move to Office 365 or Microsoft 365, they need to import PST files into their cloud environment. This is because PST files cannot be directly accessed in Office 365 or Microsoft 365 and must be imported into the cloud platform.

Migrating PST files to Office 365 or Microsoft 365 can be challenging and time-taking. Fortunately, there are a few ways to easily import PSTs into your company’s Office 365 or Microsoft 365 account. Here we will learn more about these ways:

Method 1: Using Microsoft Azure Storage/Network Upload Method

This method involves uploading PST data to an Azure storage location and then using the Office 365 Import Service to import PST data into Office 365 or Microsoft 365. This method is particularly suited for those with many PST files they need to migrate.

Step 1: Create an Azure Storage Account

Creating an Azure storage account is the initial step in this procedure. Logging into the Azure interface will enable you to achieve this. Click “Storage accounts” after logging in and choose “Create Storage Account.” A name and region for the account must be entered. You can upload your PST data once the account has been set up.

Step 2: Upload the PST files

The Azure Portal can upload the PST files to the Azure storage account. Select “Upload” from the menu after choosing your storage account. The PST files you want to upload can be chosen once prompted to provide a file path.

Step 3: Configure the Office 365 Import Service

Once you have uploaded the PST files to your Azure storage account, you can configure the Office 365 Import Service. This service imports PST data into Office 365 or Microsoft 365. Fill in your Office 365 or Microsoft 365 credentials to configure the service, and choose “Import Data.” After choosing the storage account, you will be asked to choose the PST files you wish to import.

Also read: How to Find Outlook Temp Folder on Mac?

Method 2: Using Drive Shipping:

Drive shipping is a technique for transferring massive amounts of data to cloud-based services like Office 365 or Microsoft 365, such as PST files. It entails physically transporting a hard disk carrying the data to the data center of the service provider. When dealing with big data sets that would be difficult or time-consuming to upload over the internet, this method is especially helpful. Data migration via drive shipping is quick and secure, enabling a seamless switch to cloud-based solutions.

Drive shipping provides a convenient method to efficiently move big amounts of data. The following are the steps to do so:

Step 1: Get your hard drive ready:

First, make sure your hard disk complies with the requirements and is compatible. Give the drive a distinctive drive letter and format it with the NTFS file system.

Step 2: Make a mapping file:

Create a CSV mapping file with information about each PST file you plan to import. Include details like the target mailbox’s Office 365/Microsoft 365 address and the location of the source PST file.

Step 3: PST files should be copied to the hard drive:

Copy the PST files you want to import to the hard disk that has been set up. It’s crucial to arrange them properly, ensuring sure that every PST file has its own folder.

Step 4: Encrypt the hard drive (optional):

You have the option to improve protection by encrypting the hard drive that houses your PST files. This action aids in securing the data during transfer.

Step 5: Shipping the hard drive to Microsoft:

Send the hard disk to Microsoft by shipping it in a secure container to their data center. Make sure you adhere to the exact shipping instructions Microsoft has supplied.

Step 6: Upload the mapping file:

Microsoft will notify you when it has the hard drive. The CSV mapping file can now be uploaded through the Microsoft 365 Security & Compliance Center. Microsoft will be able to link the PST files to the appropriate mailboxes, thanks to this file.

Step 7: PST file import:

Following mapping file verification by Microsoft, the import procedure will be started. The PST files’ data will be extracted and imported into the Office 365/Microsoft 365 mailboxes that have been designated.

Method 3: Using Stellar Migrator for Outlook

Stellar Migrator for Outlook is a foolproof and secure migration tool that helps import PST to Office 365 or Microsoft 365. This software can move Outlook PST data to Office 365 or Microsoft 365 in a few clicks. With this tool, you can easily move emails, contacts, calendars, tasks, etc., from the PST file to Office 365 or Microsoft 365. It also supports the selective migration of items and enables you to migrate PST files in batches. The software also allows you to map source folders with the destination folder.

Follow the steps given below to import PST to Office 365 or Microsoft 365 using Stellar Migrator for Outlook:

  1. Install the software on your system after downloading it.
  2. Launch The software, Select the ‘List Profiles’ option to access a list of all configured PST files. Select the ‘Choose Manually’ option if you want to browse manually and choose the PST file’s location. Then, click “Scan” to start the scanning process.

select mailbox to migrate

  1. The software will preview all of your mailbox data after the scan.

preview of mailbox data

  1. Choose the mailbox or mail folder you want to import from a list of all the PST mailboxes displayed in the left panel. It will take you to the Licensing window asking for the user name and password. Enter your Licensing Account credentials to log in and access the software.

connect to Stellar licensing account

Also read: Best way to unlock PST file – PST Password Recovery

  1. Before continue with the mailbox migration make sure the office 365 account is configured in your system, then start on selecting “migrate mailbox” icon from top view and then select “Microsoft365” radio button from the POP Up.

click on Microsoft365

  1. From the POP-UP window Select the Microsoft 365 account configured in your system in which you want to import your PST files.

choose Microsoft 365 configured account

  1. Click on ‘Migrate’ to begin the migration process.
  2. The software will import your PST data into Office 365 or Microsoft 365.

migration successfull

You can log into your Office 365 or Microsoft 365 account after the import is finished to confirm that all imported data was successfully transferred. You may also view the migration report to confirm that all the data was successfully moved without any mistakes. With Stellar Migrator for Outlook, you can easily import PST to Office 365 or Microsoft 365 in no time.


Importing PST files to Office 365 or Microsoft 365 can be done in several ways. These options—using the native import capability, FastTrack, or a third-party tool—are workable. Before choosing which is best for you, it is vital to consider your unique requirements since each option has advantages and disadvantages.

Stellar Migrator for Outlook is one of the most dependable and safe PST to Office 365 transfer applications on the market. It provides a user-friendly UI, cutting-edge capabilities, and quick migration times. Give it a try today to experience the seamless process of migrating PST files to Office 365 or Microsoft 365!

Written by
Barrett S

Barrett S is Sr. content manager of The Tech Trend. He is interested in the ways in which tech innovations can and will affect daily life. He loved to read books, magazines and music.

Leave a comment

Leave a Reply

Your email address will not be published. Required fields are marked *

Related Articles

Augmented Reality

Exploring the World of Augmented Reality: Applications and Future Prospects

Augmented reality (AR) has transcended the realm of science fiction, becoming an...

Wife's Instagram Messages

How Can You Track Your Wife’s Instagram Messages

From a platform for sharing photographs and stories to a place to...

OCR Document

A Complete Guide on Using OCR to Digitize Your Documents

To save, retrieve, and share information efficiently in this increasingly digital environment,...

Connecting Senior Citizens

Connecting Senior Citizens: Why Wi-Fi is Necessary in Assisted Living Communities

Wireless internet is a vital part of the 21st-century lifestyle for every...