How to merge multiple archive pst files in Outlook?
For example, you change to a new computer and add your email accounts into Microsoft Outlook with a new Outlook data file, but now you want to merge the old Outlook data file (.pst file) with the new one, how to figure it out? In this article, I will show you how to merge multiple .pst files into Microsoft Outlook.
- Merge two .pst files with one opening in Outlook
- Merge two .pst files which are not opening in Outlook
- Merge two .pst files which are opening in Outlook
Merge two .pst files with only one opening in Outlook
Let’s say there are two .pst files you will merge, and one is opening in Microsoft Outlook, while the other has not been opened, you can merge them with following steps:
Step 1: Open the Import and Export Wizard dialog box with one of following methods:
- In Outlook 2007, click "File" > "Import and Export";
- In Outlook 2010, click "File" > "Open" > "Import";
- In Outlook 2013, click "File" > "Open & Export" > "Import/Export";
Step 2: In the coming Import and Export Wizard dialog box, click to select "Import from another program or file", and then click the "Next" button.
Step 3: In the Import a File dialog box, click to select "Outlook Data File (.pst)", and then click the "Next" button.
Step 4: In the Import Outlook Data File dialog box, check the option of "Do not import duplicates", and then click the "Browse" button.
Step 5: In the coming Open Outlook Data Files dialog box, find out and select the .pst file you don’t open in Outlook, and then click the "Open" button.
Step 6: Click the "Next" button in the Import Outlook Data File dialog box.
Step 7: In the second Import Outlook Data File dialog box, check the option of "Import items into the same folder in", specify the .pst file you have opened in Outlook, and click the "Finish" button.
Step 8: Then a Microsoft Outlook dialog box pops up to show you the importing progress. It will close automatically when importing finishes.
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Merge two .pst files which are not opening in Outlook
If the two .pst files you will merge have not been opened in Microsoft Outlook, you have to open one of them before merging.
You can open a .pst file in Outlook with following methods:
- In Outlook 2007, click "File" > "Open" > "Outlook Data File";
- In Outlook 2010, click "File" > "Open" > "Open Outlook Data File";
- In Outlook 2013, click "File" > "Open & Export" > "Open Outlook Data File";
And then in the Open Outlook Data File dialog box, find out and select one of both .pst files, and click the "Open" button.
Now you can follow the same steps we introduced in the first situation to merge the two .pst files.
Merge two .pst files which are opening in Outlook
If both of the .pst files you will merge have been opened in Microsoft Outlook already, you have to close one of the .pst files before merging.
 | Right-click the .pst file you will close in the Navigation Pane, and then select "Close 'Pst File Name'" from the right-clicking menu. Note: "Pst File Name" will show as your actual pst file name. |
Then you can follow the same steps we introduced in the first situation to merge the two .pst files.
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