I would like to recommend you a MBOX File Converter software which allows you to export MBOX emails to PST, PDF, MSG, EML, EMLX and NSF. The MBOX File Converter is capable to export all email properties and attributes from MBOX folder to required format. All MBOX email applications like Thunderbird, Opera Mail, Apple Mail, Eudora, Entourage, etc, are also suitable with this MBOX File Converter application. You can easily install this software on any Windows OS platforms - 10, 8.1, 8, 7, XP, etc. with no issue. See more info: https://gallery.technet.microsoft.com/MBOX-Export-Tool-A-fba6a0df