If you want to backup EML email format to Outlook then you must launch Mac EML to PST Converter. The software is user-friendly so that you can easily convert EML email format to Outlook. It is an independent application that does not require EML supported email client installation. And no such restriction imposed on files size to change the EML email format to Outlook. Users must try the demo version of the software so that they can convert first 25 files of EML free of cost.