How to Add Multiple PST Files in Outlook?

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Are you looking to Merge Multiple PST Files in Outlook? This article helps you in combining multiple PST files with various methods and these methods are applicable for all the versions of Outlook like Outlook 2019, Outlook 2016, Outlook 2015, etc.

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You have 2 PST files created in your Outlook which you are planning to merge. Managing both PST files is not easy, especially when you have to look for particular information. But you have no idea how to go about the process. Well, it is not a difficult task; you can easily combine multiple  PST files in Outlook using various methods discussed in the article.

Why Do You Need to Combine Multiple Outlook PST Files?

Below are the Reasons, why you need to combine PST files with the Outlook profile

  • Combining work and social accounts
  • Creating backups of existing accounts
  • If you have changed your system
  • Migrating to a different service or exchange

How To Merge PST Files in Outlook?

The below methods help you merge multiple accounts in Outlook and this method works for all

Outlook Versions.

Creating a blank new PST file
Importing all PST files into the newly created PST file

Step 1: Create a blank new PST file 

The first step is to open the Microsoft Outlook application
Next, click on New Items, from the drop-down menu, select More Items followed by the Outlook Data File option
Now select the location where the new PST file has to be saved and provide a name for it. Click OK.

Step 2: Importing PST files into the blank new Outlook PST file

After creating the new PST file in Outlook 2016, the next step is to import the PST files into this blank new PST file one by one. Here are the steps for it.

  • Open Outlook, and navigate to the File option.
  • Select Open & Export followed by the Import / Export option.
  • The Import and Export Wizard will open.
  • Choose Import from another program or file option and click on the Next button.
  • Select the file type from which you have to import. Click on Outlook Data File (.pst) and hit Next.
  • Click on the Browse option to choose the file to be imported.
  • Check the box Do not import duplicates and click the Next button.
  • Now select the folder to import from. Check the Include subfolders.
  • Also, check the box Import items into the same folder and click on Finish.

Method 1: Merge Multiple PST Files Using the File tab Option

  • Open Microsoft Outlook.
  • Then click on the File tab on the taskbar, and select Info in the options.
  • Click on the Account Settings tab and select Account Settings.
  • On the Account Settings dialog box, click the Data Files tab.
  • Now, Click on the Add button to add a new PST file to your Outlook profile.
  • Browse the location where your PST files are saved. Select one PST file at a time, and click OK to add a PST file to Outlook.

Method 2: Add Multiple PST Files Using the Home tab Option

  • open Microsoft Outlook and click on the Home tab.
  • Click on New Items.
  • In the options, Select More Items and click Outlook Data File.
  • Now browse the location where your PST files are Saved. Select one PST file at a time, and click OK to add a PST file to Outlook.

If you have more than 2 PST files because creating one new PST file was not enough, then repeat the same steps for all the PST files to combine them all into one PST file in Outlook 2016. When you have to transfer Outlook data to a new computer, then all that you have to do is export this PST file.

Although the method listed above is easy, it is a little time-consuming. Moreover, if you don’t follow the steps properly or if there are any interruptions when the PST files are being moved, then there are chances of the file getting corrupted. You need a PST Repair tool to fix a PST file that is damaged/corrupted under such a situation.

If you don’t want to manually sync 2 or more PST files in Outlook, then you can make use of the third-party tool to add PST files. But make sure you use reliable applications for the same. Using unreliable tools to merge PST files can corrupt them. Suppose your PST file gets corrupted after using a third-party tool, then make use of Remo PST Repair software to quickly fix the file, and recover all its items.


Hope the above article helped you in Fixing the merging PST files, If you have any queries please do mention them in the comment section.

About the Author: Tony Landry

Tony Landry is a Web Content Editor at Remo Software. He loves to write, edit, and manage content for users trying to troubleshoot and fix problems on Windows, Outlook, storage drives, and Cloud storage networks. With an aptitude that transcends writing, Tony is recognized as a Microsoft Outlook, Word, and PowerPoint expert. His comprehensive solutions…