If you need to know How to convert Thunderbird in Outlook PST? Here we have the eSoftTools Thunderbird to PST Converter, which is easy to use for non-technical users, because of its simple graphical user interface. This tool can be easily installed and launched on any Windows OS platform, and you can instantly convert Thunderbird files in PST. With this tool. You can convert bulk Thunderbirds in Outlook at once. You can download and try out the software's demo editions, which enables you to convert the first 25 Thunderbirds in PST.