.MXML File

The mxml file extension is related to MXML (Magic eXtensible Markup Language), an XML-based user interface markup language first introduced by Macromedia in March 2004.

Application developers use MXML in combination with ActionScript to develop Rich Internet applications, with products such as Adobe Flex.

MIIME types:
application/x-xhtml+voice+xml

An mxml file extension is related to some XML markup language developed my Macromedia (later Adobe Systems).

How to open:

Use Adobe Flex to work with *.mxml components.

How to convert:

Probably cannot be converted to anything else.