In previous versions of Microsoft Outlook (the classic app), you could view the HTML code of an email by opening the email, right-clicking on it, and selecting “View source” from the context menu.

Navigate to the HTML file you wish to open and double-click it to you that file in your browser. Internet Explorer becomes your default browser when you install Windows.

You can open MIME emails or attachments in Outlook using this tip, or by using a mime file viewer (.mim) or an online tool.

You can open or import a surprising number of file formats into Microsoft Word. Not to be confused with file formatting, which—in most programs—refers to the design of a page, file formats are ...