If you want to open several Thunderbird files to Outlook PST format without any data loss, then use WholeClear Thunderbird to PST Converter. I recently used this Thunderbird converter to convert my Thunderbird files to PST format without affecting any of the contents. The program is user-friendly and secure. With this tool’s free demo edition, you can export some Thunderbird files to Outlook PST. Users can convert emails and observe a live preview before converting Thunderbird files to PST. This program works with every version of Windows. Since Thunderbird email files, which contain all the components of an email file, are user-friendly and give a range of conversion options, you can use this program to convert them.
Read more: https://www.wholeclear.com/thunderbird/pst/