How to Import PST to Office 365 – Get Started Instantly

Written By Rohan Wiese
Updated on November 25th, 2025

Summary: Is your Outlook mailbox all cluttered and looking for an efficient way to organize it? Then, import PST to Office 365 to manage, organize, and access your various PST files effortlessly. Office 365 is a widely used cloud-based suite used by several enterprises as well as individuals to access their data online, anywhere. Read this write-up carefully to effortlessly use the Aryson PST Converter and quickly import your files. Now, let’s understand the reason behind importing files to Office 365.

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Table of Contents

Benefits of Importing PST files to Office 365

Listed below are some of the common reasons why users choose to upload PST to Office 365

Office 365 provides the user with Cloud-based access to their Outlook data.
As well as it also offers real-time collaboration to improve work efficiency.
Moreover, it supports encryption, which protects users’ data.
Additionally, users can access and manage their Outlook data anywhere.
Also, users can take a secure backup of their PST files in Office 365.

Proven Methods to Import PST to Office 365

Here, in this section, we will discuss the two most effective techniques to move PST files to Office 365. The first method is using a reliable software. Whereas, if you have a few files to import, you can proceed wth the manual method.

Method 1: Most Recommended Software to Import PST File to Office 365

Aryson PST Converter is one of the fastest ways to import multiple PST files to Office 365 within a few seconds. This software makes sure to maintain 100% data accuracy and integrity by providing users with an advanced preview panel. Moreover, it doesn’t even affect the emails, attachments, or the original formatting during the import. Even if you are a complete beginner, you can convert PST files to EMLX, EML, PST, PDF, MSG, and many more file formats. Also, you can apply the advanced filters like Remove Duplicate Mails, Skip Previous Migration, custom Folder Name, etc., as per your needs.

Step-by-Step Guide to Upload PST to Office 365

To begin, install & open the Aryson PST Converter on your PC.

Then, use the Select Files/Folders option to upload one or multiple PST files.

After that, select the desired PST files. Preview them in the right panel, click Next.

Now, select Office 365 from the drop-down list and log in to it.

Finally, use the additional features as per need & click Convert.

Additional Note: This method works efficiently for both a few and a large number of files. But if you have MS Outlook installed on your system and have a basic understanding of technical concepts. You can opt for the alternative method discussed below.

Method 2: Manual Approach to Import PST to Office 365

If you have a few PST files to import, you can use Microsoft Outlook to do the same. This method includes the use of the built-in Import/Export Feature of Outlook. Follow the below given steps below to transfer PST to Office 365 accurately.

Firstly, open Microsoft Outlook on your system using your Office 365 account.
Then, go to the File >> Open & Export >> click the Import/Export option.
After that, click on the Import from another program or file button & click Next.
Now, select the Outlook Data File (.pst) option & click Next again.
Next, locate your desired PST files, select them, and click Open.
At last, select Do not import duplicates option >> Next >> click Finish

Conclusion

In the above blog, we discussed the two most effective techniques to import PST to Office 365. You can use either of the two methods to import your PST files as per your needs and requirements. In case the manual method doesn’t work fine for you, opt for the Aryson PST Converter. In case you get stuck somewhere during the import, reach out to our tech support team.

Frequently Asked Questions:

Q.1. How do I import a PST file into Office 365?

Ans- You can use Aryson PST Converter to import a PST file into Office 365.
Steps to import are:
1. Open the Aryson PST Converter on your system.
2. Click Select Files/Folders to load the desired PST files into the software.
3. Choose Office 365 as the destination email client >> log in to it.
4. Use the built-in features >> click Convert.

Q.2. What is the easiest way to upload PST files to Office 365?

Ans- Aryson PST Converter is the easiest way to migrate PST to Office 365 as compared to the manual method.

Q.3. Can I import a PST file to Office 365 without Outlook?

Ans- Yes, you can import a PST file to Office 365 without Outlook, using the above-mentioned software.

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About The Author:

Rohan Wiese

As a lead technical writer, I know the technical problems faced by office and professional users. So, I decided to share all my technical knowledge through this blog. I love helping you with tough challenges when dealing with technical issues.