Outlook stores offline data in OST format so if you want to extract OST files including emails, contacts, notes, attachments, calendars, journals, etc into PST format then you can rely on ZOOK OST to PST Converter software. The software comes with numerous advanced features such as user-friendly interface, ensure data integrity and folder hierarchy in PST format, preview option to see the complete offline OST data, filter option to convert specific emails, 24*7 technical support, etc. The software works with all old and new versions of MS Outlook as well as Windows OS.
Know more- https://www.zooksoftware.com/ost-to-pst/