As stated in the article, this tool is nice. But in my experience, I suggest MailsDaddy MBOX to PST converter which is a quick migration utility and more reliable. This tool provide bulk export options and convert all the mbox files into PST at a time.A non technical person can easily use this tool. you can absolutely convert all mbox file in single or seperate PST. i found this tool on filehippo and its working awesome. if you want to download this tool then you may visit this link : https://filehippo.com/download_mailsdaddy-mbox-to-pst-converter/