First of all, download and install the software on your system.
Use either File or Folder mode. Now, click on the Browse button and add MBOX files. A facility to directly load Thunderbird files is available. For this, click on Load Thunderbird files. (It needs installation of Thunderbird)
Once MBOX files are scanned, users can get a complete view of MBOX files and select the required items that you want to export.
Pick MSG file format to export MBOX files.
Click on the Browse button and choose the location of your system to save MSG files.
Finally, hit the Convert Now button. This will begin the conversion process.