Today I want to recommend you the best software, which is eSoftTools Thunderbird to Outlook file Converter software, It can convert single as well as multiple Thunderbird profiles into PST files by autoloading the location of the Thunderbird file, and converting the PST form of the Thunderbird file into Unicode, so it will help users open it in any edition of MS Outlook 2019, 2016, 2013, 2010, 2007, & 2003. It can simply convert Thunderbird MBOX to PST files, MSG, EML, EMLX, Yahoo, Office 365, GMAIL, and HTML files.

For more info- https://www.esofttools.com/thunderbird-to-outlook-converter.html

I would like to recommend you to use this third party MBOX to PST Converter instead of tricky manual method. In manual method, you need high technical understanding to perform the MBOX conversion and with MBOX to PST Converter you can easily convert all MBOX files to PST without have any technical understanding and all users can easily handle this Tool without any hassle. It enable the users to convert single or multiple MBOX file to PST in one go. Visit here for more information:-https://www.sametools.com/convert/mbox/

If you need to convert MBOX file to PST there are two solutions for this. One being manual way & the other is a third-party solution. The manual techniques consume a lot of time & the process is also very cumbersome. So, I would suggest you to go for a third party solution. I have tried MBOX to PST Converter Tool. This is an efficient Application to easily migrate MBOX files to Outlook PST file format. This Software also supports all popular email clients applications like- Thunderbird, Pocomail, AppleMail, Entourage, Spicebird, Eudora, SeaMonkey, Opera Mail, Evolution, etc. The software also provides a free trial. This software supports all windows version.and free demo version of this software is also availabe which converts few items from each folder. you can download this software from here:-https://www.betavare.com/mbox/pst/