How to Import PST Files to Office 365

This wikiHow teaches you how to import data to your Office 365 Outlook account from a saved PST file on Windows or macOS. A PST file contains contact information, email folders, addresses, and other mail data. You can import all your...

Method 1 of 2:

Using Windows

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    Open the Outlook app on your computer. The Outlook icon looks like a white "O" in a blue square in front of an envelope icon. You can find it on your Start menu.

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    Click the File tab on the top-left. You can find this button above the toolbar ribbon at the top of your screen. It will open your file options on a new menu.

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    Click Open & Export on the menu. You can find this option on a blue navigation menu on the left-hand side.

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    Click Import/Export on the menu. This will open the Import and Export Wizard in a new pop-up window.

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    Select Import from another program or file. It's in the "Choose an action to perform" box.

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    Click Next. This will open a list of different file types you can import.

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    Select Outlook Data File (.pst) and click Next. This will allow you to select and import your PST file in the next step.

  • Picture 8 of How to Import PST Files to Office 365 Click Browse under "File to import." This button is in the upper-right corner of the Wizard window. It will open a new pop-up.
  • You can select how you want to deal with duplicate items under "Options" here.
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    Select the PST file and click Open. If your PST file is password protected, you'll be prompted to enter it here.

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    Click Next.

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    Select Import items into the same folder in at the bottom. When this option is selected, you can specify your Office 365 mailbox, and import your PST here.

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    Enter your Office 365 account email into the text field. You can click the drop-down and select your email, or manually type it here.

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    Click the Finish button. This will start importing all the data from your PST file to your Office 365 mailbox. You'll see your import progress in a pop-up box. The pop-up will automatically disappear when your import is finished.

  • Method 2 of 2:

    Using a Mac

  • Picture 14 of How to Import PST Files to Office 365 Open Outlook (Office 365 version) on your Mac. The Outlook icon looks like a white "O" in a blue square in front of an envelope icon. You can find it in your Applications folder.
  • Make sure you have your Outlook version installed through your Office 365 subscription. If you have a different version, you can download the installer at https://www.microsoft.com/en-us/download/details.aspx?id=45492.
  • If you have a different version of Outlook the app icon may look like a yellow "O."
  • To view your Outlook version, click the Outlook tab on your Mac's menu bar on the top-left, and select About Outlook. If you have the Office 365 version you'll see "Office 365 Subscription" next to "License."[1]
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    Click the Tools menu. You can find this button above the toolbar ribbon at the top of the window.

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    Click Import on the toolbar. This button looks like a green, downward arrow and a blue figurehead in front of a table icon. It will open the Import window.

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    Select Outlook for Windows archive file (.pst). Select this option when you're prompted "What do you want to import?" in the Import window.

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    Click Continue. This will open your file navigator in a new pop-up, and allow you to select the PST file to import.

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    Select the PST file and click Import. This button is in the lower-right corner of the file navigator pop-up. It will start importing the data from your PST file.

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    Click Finish. When your import is finished, click this button to close the Import window.

  • Lesley Montoya Lesley Montoya

    Update 05 March 2020

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