Free Methods to Combine Multiple Outlook PST Files Easily
In today's world, Outlook is the most popular email client used to store emails, contacts, calendars, etc. in PST file. Despite Outlook one of the most favored email clients, MS Outlook has some downsides. Like, old versions of Outlook are restricted by some size limits. As the volume of data stored in Outlook seems close to the size limit, Outlook starts hanging and sometimes freezes automatically. Thankfully, in later versions of Outlook like Outlook 2007, 2010, 2013, and above versions. The issue has been resolved. But users having old PST file need to find the solution of their problem when the data storage limit exceeds. In this situation, users need to Online Merge Outlook files. And the same solution is discussed in this post.
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Methods to merge multiple PST files into a single PST file
If you have multiple Outlook PST files whom you want to transfer into one PST file. Then you can do it through manual method or by a trusted third-party tool. In this post, I am explaining both the methods in details.
Combine multiple PST files using a third-party tool
Merge all PST files quickly without any limitations, then use GainTools software to Free Online Merge Outlook PST file easily. You need to perform these four simple quick steps listed below โ
- Download and launch the program on your system.
- Add PST files with a selection of any of the modes โ Files or Folder

- Select an output directory to save the merged files.
- Click on the Merge Now option to begin the processing of the tool.

Manual method to join multiple PST files into single PST
With the manual method, a user can create a new PST file and merge all existing PST files into one and import them to the newly created PST file. To do this, get the steps below โ
Steps to create a blank PST file in Outlook
In order to create blank PST in Outlook 2016, 2013, 2010, 2007, these are the steps:
- Open Outlook and click on New items.
- Choose More items and then click the Outlook data file.

- After that, select a location to save the blank PST. Name the file and click OK.

Steps to merge multiple PST files into blank PST
- Firstly, open Outlook email client and Go to File
- Choose Import and this will open Import and Export wizard. In this, choose Import from another program or file. Click Next.

- Select Outlook Data File and click

- Click on the Browse button to locate the file to be imported.
- Then, select Do not import duplicates and click the Next
- Select a folder in which you want to import the PST file.
- lect include sub-folders and import items into the same folder in boxes.
- Finally, click the Finish
This method will import PST file to the folder which you selected. Similarly, you can import other PST files by repeating the same steps for every PST file. Once these files have been imported, their data can be easily combined into a single PST file.
Final Words
A manual and a software method is discussed in the above post and the users can notice combining multiple PST files into one is not so tricky but it will take some time to process the task. If you are confident to perform every step carefully, then you can try the manual solution but if you are not familiar with Outlook and its terms, then you should choose the software approach to avoid all hassles.
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