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.EML File Extension

File TypeE-Mail Message

3.5 (340 Votes)
CategoryText Files
FormatText and Binary

What is an EML file?

An EML file is an email message saved by an email application, such as Microsoft Outlook or Apple Mail. It contains the content of the message, along with the subject, sender, recipient(s), and date of the message. EML files may also store one or more email attachments, which are files sent with the message.

More Information
Screenshot of a .eml file in Microsoft Mail
EML file open in Microsoft Mail

Microsoft developed the Electronic Mail (EML) format to comply with the industry-standard RFC 5322 for transferring messages between email clients. EML utilizes the Internet Message Format (IMF) syntax for text stored in the messages.

Because of its wide adoption among email clients, EML has become one of the most common email message formats. Some other common email message file types include .MSG .MBOX, .EMLX and .DAT.

NOTE: You can create an EML file with Apple Mail by selecting an email message, then clicking File → Save As... and choosing "Raw Message Source" in the "Format" dropdown menu.

How do I open an EML file?

You can open EML files with a variety of email programs, such as Microsoft Outlook (Windows), Apple Mail (macOS), and Mozilla Thunderbird (multiplatform).

You can also open EML files with various web browsers, including Google Chrome (multiplatform), Microsoft Edge, and Internet Explorer since they are formatted similar to .MHT files. You can change the .eml file extension to .mht and open it directly with the web browser.

Since EML files are partially saved in plain text format you can open them with a plain text editor, such as Microsoft Notepad and Apple TextEdit. However, you may need to change the .eml file extension to .txt.

Open and view .EML files with File Viewer Plus.

Programs that open EML files

Updated 3/18/2021

About EML Files

Our goal is to help you understand what a file with a *.eml suffix is and how to open it.

The E-Mail Message file type, file format description, and Mac, Windows, Linux, and Android programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and only publish information about file formats that we have tested and validated.

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