An OST file is an offline copy of your mailbox stored on your local computer. It synchronizes with the email server when you reconnect. Without a live connection to the original server, you cannot open or export an OST file directly in Outlook.
OST to PST Converter: Why You Need It and How to Choose the Right One ost to pst converter
Not all converters are equal. Here’s what to prioritize: An OST file is an offline copy of