ATS OST Converter is able to convert OST files into multiple workable file formats like PST, MSG, EML, EMLX, vCard, MBOX, and various other file formats. It comes with a unique feature of a split option that helps to divide large sized resulted PST files into multiple small parts. Try a free demo version of this software which is able to give you a live preview of your corrupted OST file inner data to selectively export them to PST or another file format.
OST to PST Steps :-
Login to Outlook with the Exchange account that was used to create the OST files. And to export the OST mailboxes to PST, follow the simple procedure:
Go to Files >Open & Export and click Import & Export.
Select Export to a file; then click Next.
Select the second option—Outlook Data File (.pst)—and click Next.
Select the folder which you want to export and click Next.
Browse the location where you want to save the new PST file and choose the options regarding the duplicate items.