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How to Merge Multiple PST Files into One without Outlook ?

Karen Chard ~ Modified: 24-06-2021 ~ How To ~ 6 Minutes Reading

Hello, I’m Frank Branca from London. I work in a large organization as a data manager. Every day my organization receives thousands of emails and thousands of emails are sent by us. Therefore, we have a large amount of email data in our database. For basic email communication, we are used Microsoft Outlook email clients. Daily I have received many PST files from different users. Therefore, I am looking for a solution to merge multiple PST files into One. Does anyone know how to merge PST files into One ? Please help me!!!

If we are searching for the best email client application, then Outlook first came to mind. Outlook is a desktop-based email client application developed by Microsoft. It provides a platform where we can send / receive emails and easily manage other daily tasks. Therefore, large organizations and business users have preferred Outlook as the first choice. In addition, Outlook users are worried about the large database of emails that is hard to oversee. In fact, the older Outlook version was a PST file that stored all mailbox data on the local system that was bound by size-limits.

As we see in the above query, an Organization received many PST files from different users. They want to know how to merge multiple PST files into one so that they maintain working data on a daily basis. However, many users, not only professionals but also general users want to know the process of merging PST files into a single PST format. RecoveryTools Labs understand the need for all types of users. Therefore, we developed Outlook PST Migrator Tool to merge PST files into One without Outlook connectivity.

Reasons to Merge Outlook PST Files into Single PST Format

  • There is a big reason to merge PST files into one to manage work data into a single place or format.
  • Users want to merge their old Outlook PST files into Single PST format. To do this, they need to merge multiple PST files into one.
  • The user wants to migrate multiple Outlook profiles data into one place or one account.
  • There are many users who want to prevent data from loss and corruption issues.
  • To access multiple Outlook account databases in one place to increase work productivity.

How to Merge PST Files into One without Outlook Installation ?

A faster, simpler, and more efficient solution to merge PST files with RecoveryTools PST Merger Wizard. The software provides a simple and easy to use interface for all novice and professional users. One can easily merge all PST items such as emails, contacts, calendars, notes, tasks, journals, etc. It is a completely standalone software that doesn’t require connectivity with Microsoft Outlook. To Merge PST Files into one, you need to download the software first.


After that, install or launch the software on your Windows Computer.

Thereafter, choose the PST files with dual selection options. If you want to locate your Outlook data, then it provides auto-locate option also.

After that, select the required PST file folders from the list.

Thereafter, choose the PST option in the list of file saving options.

After that, select the destination location path to save the merged PST file.

Thereafter, click on the next button to merge multiple PST files.

After that, the software pop-up a completion box. Click the OK button.

PST Merger Tool – Features Explained

Merge Outlook PST Emails into One File: – The software allows you to merge Outlook PST email files into a single one. The software merges PDF files emails into one and removes duplicate.

Merge PST Contacts into One PST: – If you want to merge only PST contacts into one, then the software allows you to choose only Contacts folders from the list.

Preserves PST Folder Hierarchy: – During the merging process, the software keeps the PST folder hierarchy structure. So, you will get the complete original folder structure after complete the process.

Merge PST Calendars into One: – You can also use this application to merge your PST calendars into One PST file without any issues. It is armed with contemporary expertise that allows you to merge duplicate meeting calendars.

Merge Multiple PST Files into One: – The software provides dual selection options to choose multiple PST files at once. So, you can easily merge bulk PST files into Single PST format without any issues.

Support All Microsoft Windows OS: – The software supports all editions of Microsoft Windows machine such as Windows 10, Windows 8.1, 8, 7, Windows Server 2019, Server 2016, Server 2012, etc.

Merge PST Files into Other Formats: – The software comes with multiple saving options to merge PST files into different file formats also.

Merge PST Files by Folders: – If you want to merge PST folders on different PST files, then the software provides the option to merge PST Folders into One.

Common User Queries

How to Merge PST Files into One ?

Follow the given step-by-step process: –

  1. Run PST Merger Software on Windows.
  2. Select the required PST files with dual options.
  3. Choose the required PST folders from the list.
  4. Select the PST file saving option from the list.
  5. Click on the next to merge PST files into One PST.

Can I merge PST Files without Outlook installation ?

Yes, the software works with the standalone interface. So, there is no need to connect with Outlook during the PST Merge process.

Does the software work on Windows 10×64 Computer ?

Yes, the software supports all editions of Microsoft Windows including X64 bits of OS.

Does the software maintain folder structure during the PST file merge process ?

Yes, the software maintains the PST folder hierarchy structure during the merge process.


In the above article, we have explained the complete process to merge PST files into one. If you are also one of them who want to merge multiple PST files into single PST, then download the RecoveryTools software. The company offers a trial edition of this application to merge 25 emails from per PST files into one. For the unlimited merge process, you need to buy this application. If you have any issues with the software and its process, contact us on live support chat.