Guides

How to open an EML file

What an .eml file is, which apps open it by default, and how to view one without installing anything.

How to open an MSG file without Outlook

Why .msg files need Outlook, and three real ways to open one when you don't have it installed.

What is winmail.dat?

Why Outlook sometimes sends a winmail.dat attachment instead of a normal message, and how to open one.