What’s the process to import OST files to PST files in 2025?

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There are several effective methods available to convert OST files to PST files. One commonly used approach is exporting the mailbox data directly through Outlook. Below is a step-by-step guide to help you with this process.

Method: Export Mailbox to a PST File Using Outlook

To begin, make sure you are logged into Outlook using the Exchange profile that was originally used to create the OST file. Then, follow these steps:


  1. Open Outlook and click on File in the top menu.
  2. Select Open & Export, then choose Import/Export.
  3. In the Import and Export Wizard, select Export to a file and click Next.
  4. Choose Outlook Data File (.pst) and click Next.
  5. Select the mailbox folder(s) you wish to export and click Next.
  6. Browse to the desired location where you want to save the new PST file.
  7. Click Finish to complete the export process.

Once done, your OST file content will be saved as a PST file.

Additional Methods

There are other manual and automated methods available for OST to PST conversion, depending on your specific needs and the tools you have access to. For a more comprehensive overview, I recommend referring to a detailed blog that outlines multiple approaches to converting OST files to PST format, complete with screenshots and expert tips.
 

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