The easiest way to convert EMLX to MBOX is by using the best software Aryson EMLX Converter Tool. This software allows you to bulk convert Apple Mail EMLX files into MBOX format with just a few clicks. It preserves folder hierarchy, attachments, and email formatting. Simply add EMLX files or folders, preview the content, choose MBOX as the output format, and hit Convert. The tool also includes features like date-range filtering, duplicate email removal, and attachment management. It's compatible with all Windows versions and supports secure, loss-free conversions ideal for importing into clients like Thunderbird.