Today, Outlook is the most widely used email client application for communication around the world. Users can create multiple accounts in Outlook. In addition, while upgrading from an older version to a newer version, users have multiple Outlook PST files that are not easily managed. If you are facing the same problem, you do not have to worry at all. In this blog, you’ll learn how users can easily manage multiple PST files via merge two Outlook data files (.pst) into one file.
Here we will explain the free manual approach to combine 2 Outlook data files. We will also discuss the automated tool i.e. PST Merge to combine Outlook data files. In the end, you can easily choose a solution that meets your needs. So let’s get to the process.
Free Manual Steps to Merge 2 PST Files into 1
The manual method is divided into two parts because there is no direct way for merging Outlook .pst files. First, you need to create a new PST file and, secondly, merge all existing .pst files by importing them into the newly created PST file. Follow these steps to complete this process:
Step 1: Make a New PST File
- In Outlook, go to the New Items and click More Items >> Outlook Data File
- Specify the location for the new PST file and provide a name for it.
- Lastly, click the OK button. Now, you need to follow the second step to merge two Outlook data files together into one PST file.
Step 2: Import All Existing Outlook PSTs Into New One
- Click the File tab and select Open & Export >> Import/Export option.
- Import and Export Wizard will display, select “Import from another program or file” and click Next.
- Select “Outlook Data File (.pst)” and click the Next button.
- Browse to the .pst file you wish to import. Under Options, choose “Do not import duplicates” and press Next.
- Select the folder to import from and check the “Include subfolders”. Also, choose “Import items into the same folder in”.
- Finally, click the Finish button to complete the process.
Note- The manual approach is best if you have 3 to 4 PST files to merge. If you want to combine multiple Outlook data files into one, this process becomes time-consuming and tricky. So, it is better to opt for the automated method to get a quick and reliable solution.
Automated Solution to Merge Two Outlook Data Files (.pst)
If the manual method does not merge 2 PST files into 1, or if you do not want to lose your important data, you need to opt for a professional tool such as SysTools PST File Merge Software. With this application, you can combine multiple Outlook data files into one without losing data information. This utility allows all types of PST files, such as archive files, password-protected files, network files, and active files, to be merged.
Both ANSI and UNICODE PST files are supported for the merge process. The tool offers three options- Join, Merge and Merge Contacts. You can easily select any one option to combine 2 Outlook data files or multiple files.
Quick Steps to Merge Two Outlook Data Files into One
You need to follow the below-described steps to merge 2 PST files into 1 without the need for technical knowledge.
Step 1. Download and launch the PST Merge tool after that select the PST file you want to merge

Step 2. Choose the Merge option from the list to proceed.

Step 3. Under Advanced Options, choose to Remove Duplicates option in order to merge outlook PST files without duplicates.

Step 4. Browse to the location where you want to store the output PST file.

Step 5. In the end, hit Merge PST Files button and that’s it.

This the complete process to combine multiple Outlook data files (.pst) into a single file without installing any external application. Now you can easily import the PST file into Outlook 2019, 2016, 2013, 2010 and all previous editions.
Advantages of Combining Multiple PST Files into One
It’s not that easy to manage or access multiple Outlook data files. Executing multiple files may result in data loss or data corruption issues. All over merging Outlook .pst files into a single one is the most successful way to resolve all these issues. Here are some benefits to merge two Outlook data files into one file.
- The user can easily open and view the PST file without any trouble
- No issue of data corruption and misplaced issue while accessing the PST file
- Can easily shareable to someone
- Access PST files of multiple accounts in one place
- Helpful for migrating Outlook to another application
The Final Words
Merging multiple Outlook PST files is the best method to manage PST files and avoid data loss problems. Here, we have explained the free manual method to combine 2 Outlook data files. Also mentioned the automated solution to merge two Outlook data files and combine multiple Outlook data files with complete accuracy. You can download the free PST merge tool version to check its efficiency. So, choose any of the methods and merge PST files together.