You can try MacMister MBOX to PST Converter Tool. It is a solution that offers versions for both Mac & Windows. The GUI is user-friendly. Anyone can independently handle the app and convert unlimited MBOX files to PST at once. Moreover, besides PST, users can use the same app to convert MBOX into other file-saving options such as EML, EMLx, OLM, CSV, HTML, DOC, IMAP, G Suite, Yahoo, and more. Also, the features in the app allow users to perform the conversion as per their requirements. Download the freeware version of the software and check its procedural steps for free. It also allows to convert first 25 MBOX emails to PST with attachments free of cost.
Know more – https://www.macmister.com/mbox/pst.html