The best method is to convert EMLX files to EML format without losing any data by using a reliable email conversion tool that supports both formats. So you can use third-party software like Dailysoft EMLX converter software designed for file conversion. This tool Supports export conversion without third-party apps, not even Thunderbird and Apple Mail. It Converts a single EMLX file or multiple at a time by supporting bulk conversion. It can Export EMLX files with all email attributes and helps avoid data mismanagement. This is an award-winning solution to make Apple Mail data compatible with several other platforms. It is an interactive software to export data in just four easy manual steps.