eSoftTools PST to MBOX Converter Software is one of the best solutions to open PST files in Thunderbird. You can export your emails in MBOX format using this advanced feature tool. Users can utilize this tool to improve their Outlook data. Even non-technical people will find the user interface simple to use. It will be available for everyone to test out for free. Each folder can only have 25 email items changed at a time in the demo edition, but you can access free technical support anywhere at any time.
Know more:- https://www.esofttools.com/pst-to-mbox-converter.html