What is an EMLX File?

How to Open, Edit, & Convert EMLX Files

Picture of an envelope

A file with the EMLX file extension is an Apple Mail Email file created with Apple's Mail program for Mac OS X.

EMLX files are plain text files that store just a single email message. They're normally found on a Mac in the ~user/Library/Mail/ folder, typically under the /Mailboxes/[mailbox]/Messages/ subfolder or sometimes within the subfolder /[account]/INBOX.mbox/Messages/.

Note: EML files (without the "X" at the end) are E-Mail Message files used by Microsoft Outlook and other email clients, including Apple's Mail software.

EMLXPART files are used by Apple Mail as well, but as attachment files instead of as the actual email files.

How To Open an EMLX File

Your EMLX file was almost certainly created by and can be opened with, Apple Mail. This is the email program included with the Mac OS X operating system.

Apple Mail isn't the only program that can open EMLX files. Since these files just contain text, you could use a text editor like Notepad++ or Windows Notepad to open the file too. However, I imagine it's much easier to read the message if you open it with Apple Mail.

Tip: Don't confuse an EMLX or EML file with an EMI file (one that has an uppercase "i" instead of an "L"). EMI files are completely different than these files that hold email messages. LXFML files also look kind of similar to EMLX files but they are LEGO Digital Designer XML files, not email messages. XML, XLM (Excel Macro), and ELM are a few more examples of files that share similar file extension letters as EMLX files but don't open with the same programs.

If you happen to have an EMLX file that isn't an email message file and has no association with email clients like Apple Mail, I recommend opening the file with Notepad++. If you can tell that it's not an email message when you open it with a text editor, there might still be some sort of text within the file that can be used to help identify what format the file is in or what program was used to create that specific EMLX file.

How To Convert an EMLX File

On a Mac, you should be able to open the EMLX file in Mail and choose to print the message, but select PDF instead of to print the message on paper. That will essentially convert the EMLX to PDF.

Tools like EML to PST and Outlook Import should be able to convert an EMLX file to PST (an Outlook Personal Information Store file) if you want to convert the message into a format recognized by Microsoft Outlook and similar mail programs.

Although I haven't tried it myself, this program might be what you need to convert an EMLX file to EML.

If you need to convert the file to mbox, you should be able to use the EMLX to mbox Converter tool.

More Help With EMLX Files

See Get More Help for information about contacting me on social networks or via email, posting on tech support forums, and more.

Let me know what kinds of problems you're having with opening or using the EMLX file, what programs or conversion services you've already tried, and then I'll see what I can do to help.