If you're serious about learning how to "Convert PST to MBOX Converter," I recommend using the eSoftTools PST to MBOX Converter Software. It provides smooth PST to MBOX file conversion by using a very quick and clean graphical interface. Both ANSI and UNICODE PST files are supported for conversion. The software supports both new and old versions of Microsoft Outlook. Customers who have purchased PST to MBOX Converter can use the free demo to transfer up to 25 emails from each folder for free.
Read more:- Convert PST MBOX File Format