To user queries on how to export OST to PST file format, we will discuss three manual methods here. It is suggested to create a copy of the original data before starting the conversion process as there are several limitations and risks of severe data loss due to human error.
Import/ Export Method
Launch the MS Outlook program on your system.
Go to the File tab.
Select the Import/Export option.
Click on Export to a file
Hit the Next button
Now select the Personal file folder (.pst)
Click on the Next button.
Go to parent root and click on Include Subfolders.
Browse to define the path to the resultant file.