Need to convert an OST file to PST for free? If you have access to Microsoft Outlook, here’s a simple method to do it — no paid software is required!
First, open Outlook with the profile that’s connected to the OST file. This ensures Outlook can access the data stored in it, such as emails, contacts, and calendars.
Next, go to File > Open & Export > Import/Export. Choose Export to a file, then select Outlook Data File (.pst).
Now, choose the folders you want to export — like your Inbox, Sent Items, or even the entire mailbox. Select a location to save the PST file and click Finish.
Outlook will create a PST file containing your OST data. That’s it! You’ve successfully converted your OST to PST using Outlook — completely free.
This method works only if the OST file is connected to an active Outlook profile.
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