To access Microsoft OST file data in Thunderbird, first you have to migrate OST files to MBOX format, then you can import the converted MBOX files to Thunderbird and easily Open OST File in Thunderbird:
- First perform OST to MBOX conversion
- Download and install Thunderbird add-on Import/Export Tool
- Open Thunderbird, click on “Tools” from menu bar
- Click on Import MBOX file option then choose the action “Import one or more mbox files", with its/their subdirectory” then ok
- And browse the MBOX files from stored location
There are so many email clients on Mac OS which support MBOX and EMLX, like Mac Mail, Entourage, Thunderbird for Mac, etc. For OST Conversion for Mac, first you have to convert OST file data to MBOX and EMLX format.