This article explains what EMLX and EML files are and how they are created. It also explains how to open both file types and the different ways to convert them to other file formats.
Tutorial How to open .EML files – What program opens EML email?
A file with the file extension EMLX or EML is used to store an e-mail message. Although these file formats are used for similar reasons, they are not exactly the same.
EMLX files are sometimes called Apple Mail email files because they are typically created using Apple's Mail application for macOS. They are plain text files that store only a single email message.
EML files (without the "X") are often called e-mail message files and are commonly used by Microsoft Outlook and other e-mail clients. The entire message (attachments, text, etc.) is saved.
