What is EML File Extension?


EML file format follows the regulations of RFC 822 Standards. It is well equipped in supporting the ASCII text format to retain email headers. The file extension retains email messages and attachments including hyperlinks to maintain complete data. It primarily supports MS Outlook Express. There is a large list of email clients that support EML files. It is a flexible file format.


The file extension comes in the category of text files.

Supported Apps

Multiple file formats are supported by the file extension.

MS Outlook 2013

MS Windows Live Mail

MS Outlook Express

Mozilla Thunderbird of Windows, Linux & Mac

Mozilla SeaMonkey of Windows, Linux & Mac

Novell GroupWise


Microsoft has originated by EML file extension.

MIME Types


File Format

It supports Text and Binary formats.


46 72 6F 6D 3A 20


The location of EML is depended on the OS you are working on.

How to open or view EML File Extension

Since the file extension supports various email clients, it is flexible to open with Thunderbird, WLM, OE and much more. There are some third applications to let you view EML file format.

Popular Conversion from EML

Popular conversion to EML