I would like to inform the best software to import Thunderbird to PST file so I recommend professional KDETools software Thunderbird to PST Converter. Thunderbird to PST Converter software is one of the suitable and safe solutions that allows the import of multiple Email Clients like Apple Mail, Pocomail. Eudora, Spicebird, Entourage, Google takeout, Netscape, SeaMonkey, etc. it quickly converts a single and multiples files without any issue. Thunderbird to PST Converter suitable with the Office 365 server and Live Exchange.
To know more: Thunderbird Converter | Export Thunderbird to Outlook