The best way to transfer EML files to Outlook is to use a trust-worthy EML to PST Converter tool. Which provide direct option to convert EML to PST format and migrate EML files to Outlook 2019, 2016, 2013, 2010, and all earlier versions. You can convert corrupted, damaged or orphaned EML file to Outlook PST file using this well developed software. The software ensure safe and secure EML to PST conversion without any data loss. This utility has intuitive and user-friendly interface which supports both novice as well as professional users. It is a professional tool that can be used by common users and organizations as well. It is fully supportable to all major EML supported emails clients and smoothly works with Windows 10, 8.1, 8, 7, XP, Vista, etc.
For more info-
https://www.zooksoftware.com/eml-to-pst/