Using the SysInspire OST to PST Converter application, you can import an Outlook OST file into a PST file. It is a well-known Outlook converting tool that produces precise results. You can use this tool to import Outlook OST files into PST and a variety of other formats, including Yahoo, Gmail, Office 365, ICS, Zimbra, EMLX, HTML, vCard, EML, MSG, and MBOX. It also has a money-back guarantee for added assurance. Users can convert specific Outlook OST files by using the email filtering feature. Check out SysInspire's official website for a free demo version of this product.
Read More:- Convert OST File to PST
Convert OST to PST Manually
Open Outlook and go to the File menu.
Select the Import/Export option.
Choose Export to a file.
Select Outlook Data File (.pst)
Choose whether to export a specific folder or the whole account.
Check the Include subfolders box.
Next, select a destination for the Export, and then click Finish.
This May Work,
Peter