Merge Multiple Outlook PST Files

Updated on November 23, 2022 by Armaan

Although one of the most convenient emails clients, Microsoft Outlook has always had flaws. For example, one of the biggest drawbacks of older Outlook versions was that the PST files that stored all the data in the mailbox on local systems were limited in size.

Files will work perfectly if the data stored in MS Outlook does not exceed the maximum limit. Still, when the maximum size limit is exceeded, you may face corruption, degraded performance, and similar problems.

Fortunately, Microsoft has solved this problem in the latest Outlook versions, such as Outlook 2019, 2016, 2013, 2010, and 2007, which are related to PST files with no size issues. However, now a new kind of obstacle has emerged. Users who have older PST files created with older versions of Outlook need to enter their data into larger PST files that can be used with the latest Outlook versions. Thus, essentially, you need to merge multiple PST files into one. We are going to discuss this topic in this blog.

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Why Merge Multiple PST files?

Before merging PST files into a single PST, let’s discuss why it is important to merge PST files. Every user has different motives to merge PST files, but there are some common reasons why users want to merge their multiple PST files into a single PST. So, here we discuss some reasons for merging PST files.

  • When you need to combine or merge multiple PST file from your old accounts.
  • Merging PST files is the best option when generating backups.
  • When you want to merge your personal, social, or work related accounts together, the merging is the best way to manage those files.
  • Merging is the ideal solution if you plan to move other services, such as Exchange.
  • If you're getting files from a team, a family member, an organization, or any other group of individuals, combining them into one PST is the simplest method to handle everything in one place.

So these are some reasons why users need to merge their PST files into a single PST. It’s very difficult to manage multiple PST files so that merging PST files is the best way to manage multiple PST files in easy and simple manner. Apart from the above-mentioned reasons, there are many other reasons where user merges their PST files. But basically, it depends on the user requirement why they want to merge their PST files in a single PST.

How to Merge Multiple PST files Manually?

If you need to combine or merge several Outlook PST files to create a larger file, then you can use the following guided manual steps:

Step 1: Create a new blank PST

If you want to create a new blank PST file, follow these simple steps mentioned below:

  • 1. Launch the Outlook application on your computer, click on 'New Items' → 'More Items' → 'Outlook Data File'.
  • Manual Steps to Merge Multiple Outlook PST Into A Single File
  • 2. Now on the 'Create or Open Outlook Data File' window, select a location to save the new blank PST and provide a name for it. And after that click 'OK' tab.
  • Tips to Merge Multiple PST file into One

Step 2: Merge all existing PST files into the newly created blank PST

If you want to combine multiple PST file into new file which you have generated above, follow these simple steps mentioned below:

  • 1. In the Outlook window, click on 'File' menu → Press on 'Open' tab → Choose 'Import' option
  • 2. Now 'Import-Export' Wizard will appear on the screen. Here select 'Import from another program or file' option and click → 'Next' tab.
  • Manual guide to combine multiple pst file into one
  • 3. Now, in the 'Import a file' window select file type 'Outlook Data File (.pst)' and click → 'Next' button to continue.
  • Step by step guide to merge multiple pst file into single pst file
  • 4. After that, click the 'Browse' button to locate the PST file you want to import to the new PST file. Also, check the 'Do not import duplicates' box and Click → Next button.
  • 5. Now select which folder you wish to import into a new PST file. And also check the 'Include subfolders' and 'Import items into the same folder' in boxes and then Click → 'Finish' button.

With these steps, the PST file can be imported to thst folder where you want. If you want to import more other PSTs then you have to repeat the same steps for each of them. After importing all the files, their data can be merged into a single PST. The resulting large PST can then be exported to any device to access all data in the mailbox.

An Easy Alternative Way to Merge PST Files:

However, the above method looks quite simple, rarely if you follow it carefully. Errors may occur due to an incorrect selection or file merging problem. Moreover, users who are unfamiliar with Outlook or other technical terms. They may find these steps somewhat difficult.

An easy, quick and effective way to merge multiple PST files, with the use of professional Regain Outlook PST Merger software. This highly advanced software allows you to combine PST files with a user-friendly interface easily. You can use it to combine all data elements, such as email, contacts, notes, calendar, assignments, and journals, without changing the original PST file data. Moreover, it automatically eliminates the deleted items from the merging process. The tool supports password-protected Outlook PST files, and it offers several saving options for new and existing PST files.

PST Merger tool allow to combine multiple pst file into one

Regain PST Merger tool easily Merge any size of PST files into a single PST file without any file size restriction. The interface of this Software is very simple and easy to use where you don’t need any technical knowledge to operate it; you just need to select your desired PST files, and then you can easily Merge them into a single PST file. The Software does not change anything from the original formatting of all data users will get their all data files with all emails attachments and properties.

Before the Conversion, you can preview all emails items. It can merge ANSI and UNICODE PST files into a single UNICODE PST file without any issue. Users can try the free demo version and save 30 emails per folder free of cost.

The Final Word:

Merging several PST files into a single large file is not a difficult task if you are confident in what you need to do. If you have any doubts in your mind, then you should avoid all problems and for this, you can use a safe and trustworthy Regain PST Merger tool for accurate and satisfactory results.