Files with .emlx extension are mail message files used to store an email message. EMLX files were implemented and developed by Apple for Macintosh operating system. EMLX files are plain text files and stores only a single email message. EMLX files can also be opened with a normal text editor and Apple Mail. Sep 27, 2018 · But I knew Mac Mail uses EMLX files to store messages: each EMLX file for a single individual email. And they are stored inside .mbox file packages that are not exactly the standard MBOX files that the industry uses for all other purposes. I also knew that PST is a personal backup data file Windows Outlook uses and can also import data using PST. The EMLX file extension is used for a text file implemented and developed by Apple. It is related to Apple Email and used in Apple Mac OS X. Normally stored as a plain text file, EMLX file can also be viewed using any text editor. No, you don’t have to pay for the software, EML Reader is a free tool to read *.eml and *.emlx files. Will this EMLX viewer allows to view attachments too? Yes, tool is so advance that you can view and save attachments just by double clicking particular message, as per your choice. The software helps to convert EML or EMLX files into PST file of UNICODE type which allows you to open the converted PST within any version of MS Outlook. Batch conversion of EML files It is possible to convert as many EML / EMLX files as you want with the tool.