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How to Combine Multiple PST Files into One Manually?

Ugra Narayan Pandey | Modified: July 19th, 2022 | 5 Minutes Reading

Are you looking for a solution to combine multiple PST files into one manually? If yes, then your query will be sorted here. In this blog, we will explain the method for combining PST files in Outlook.

Microsoft Outlook is the most popular and favorite desktop-based email clients application. All Outlook data stored in the PST file that is a Personal Storage Table. Basically, it is the database of Outlook which contains emails, contacts, calendars, tasks, notes and much more information.

Instant Solution: You can Free Download PST Merge Software to quickly merge PST files free with existing / new PST or Outlook Profile. This utility supports to combine large number of PST files with or without Outlook application.

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Why Do Users Need to Consolidate Outlook Data Files?

The user creates several PST files according to their requirements. It is easy to manage PST files if they are in a commonplace. Therefore, users want to combine multiple PST files into one. Here are some reasons for the same:

  • The size of PST file is limited i.e. 2 GB for ANSI and 50 GB for UNICODE
  • To prevent data from loss or accidental deletion
  • The user wants to access several Outlook PST files on different computers
  • Avoid opening several PST files to save time and efforts.

There are two solutions for almost all issues related to data recovery, data migration and merging multiple data. One is manual and the second is the automated solution. Same as there are also two solutions to combine data files in Outlook. The first is a manual method and the second is a third-party solution. Here we are going to discuss both methods step by step.

Combine Multiple PST Files into One Manually

The manual process has two parts i.e. create a new PST file and then import PST data into newly created PST file.

  • Click New Items >> More Items >> Outlook Data File.

  • A new window will appear “Create or Open Outlook Data File”. Give a name to this new file and click OK.

  • The new Outlook PST file will be highlighted in the navigation pane.
  • Next, click File tab >> Open & Import >> Import/Export.

  • “Import and Export Wizard” will appear, select Import from another program or file option and click Next.

  • Select Outlook Data File (.pst) option from the list of the file type to import from and click Next.

  • Click Browse and select the PST file to import.
  • If you do not want to import duplicates, click “Do not import duplicates” and then hit the Next button.

import pst

  • Select the folder to import from. Check the box “Include subfolders” and “Import items into the same folder“.

  • Finally, click on Finish.

Drawbacks of Manual Approach

The manual process is completely free, but it is very lengthy. There is also no guarantee of a safe & secure result. So, it is better to go with the alternate method to smoothly and quickly accomplish this task without data loss issues.

Combine Multiple PST Files into One via Automated Tool

Free PST Merge Tool is an excellent and powerful utility to combine unlimited PST data files together. This application only takes a few moments to accomplish the combing process. Any technical and non-technical users can easily access this tool because of its simple and easy to use interface.

Steps to Combine Outlook PST files into one are as follows;

Step 1. Run the software and select PST files.

PST Merge

Step 2. Choose Option – Merge or Join.

Merge Multiple PST Files Into One

Step 3. Choose any option: Merge with an Existing PST, New PST or Outlook Profile.

Combine Multiple PST Files

Step 4. Choose required options to manage Outlook data files.

Combine Multiple PST Files

Step 5. Hit on the Next button.

Merge Multiple PST Files Into One

Why Choose Outlook PST File Merge Tool?

  • Able to consolidate PST files together with emails, calendars, contacts, tasks, notes, etc.
  • Merge into a new PST, existing PST or Outlook profile.
  • Provides supports to manage multiple calendars in Outlook by combining them into one
  • Facility to remove duplicate Outlook emails, calendars, contacts, tasks, notes and journals..
  • Maintains the integrity of data while combining multiple Outlook PST files.
  • Supports all MS Outlook editions like Outlook 2019, 2016, 2013, 2010, etc.
  • Ability to combine archive as well as password protected files.
  • Works with all Windows Versions i.e. Windows 10, 8.1, 8, 7, etc.


Here we discussed the solution to combine multiple PST files into one manually. We also mentioned the limitations and disadvantages of the manual method. Therefore, to combine multiple Outlook PST files into one instantly and easily, it is better to use an alternate solution. This way it is easy to manage Outlook data like contacts, calendars, emails, and more.

Frequently Asked Questions

Can I merge multiple Outlook PST files into a single file?

Using this tool you can easily combine unlimited PST data files into one. There is no limit of file number, size, ANSI or UNICODE PST files.

How do I combine Outlook archive PST files?

There is no direct way to combine archives. However, using this tool is the best option to combine multiple archives. This will give you accurate result in a few moments.

How do I make all my emails appear in one inbox in Outlook?

You can merge multiple inboxes into one to make them appear in one inbox.
1. Download and install the PST file merge application
2. Add PST files and select the Merge option
3. Select Merge Into Existing PST option
4. Click Next.