Download the outstanding OST to PST Converter which allows users to save OST mailbox items in PST, EML, MBOX, MSG, HTML, etc. There is also a free version available for evaluating the performance of the utility. There are no file size restrictions and no risk of data manipulation. The demo version can export 50 emails for free.
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Method One- Import and Export
Step-1: Launch MS Outlook application
Step 2: Open the “File” menu and choose “Import and Export”
Step3: In the next window click “Export to a file” and then “Next”
Step 4: Now choose Outlook data file (.PST) and click “Next”
Step 5: Select the mailbox folder to export from. You can choose to include subfolders
Step 6: Browse and select the folder where you want to store the PST file and click “Finish”
Note: For this method, you need to have an Exchange server connection and Outlook installed in the local computer.
Method Two- Archive Method to move mailbox items to a PST file
Step 1: Open your Microsoft Outlook application
Step 2: Click on “File” and then Archive
Step3: Choose the file/folder to archive and Browse the location to save the archived file
Step 4: Click Finish
Note: With the archive method, you can migrate all OST data except for the contacts.
Method Three: Drag and Drop Method
With this method, you can convert Mailbox items of OST file to a new PST file.
Step 1: Launch MS Outlook application
Step2: Create a new PST file in your Outlook Profile
Step 3: Choose and drag all the mailbox folders you want to move to the new PST file