OST to PST Converter Tool to Convert OST File to PST Online
https://www.arysontechnologies.com/convert-ost-to-pst-online.html
The difference between OST and PST Files. OST and PST are Outlook data files; both store Outlook email messages, contacts, calendars, tasks, notes, journals, attachments, etc. If you use Outlook client with Microsoft Exchange Server, an offline folder is created on the local system after synchronization, and this offline folder is called OST ...
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