04-30-2026, 11:01 AM
If you have need to export OST file to PST in Outlook 2019, follow these steps. First, open Outlook and go to the File tab. Click Open & Export, then choose Import/Export. In the wizard, select Export to a file and click Next. Choose Outlook Data File (.pst) and proceed. Now, select the mailbox or folders you want to export and enable subfolders if needed. Click Next, then browse to choose the destination location for the PST file. Set options for duplicate items as required. Finally, click Finish and, if prompted, set a password. The export process will begin, and your OST data will be saved as a PST file.