.mxml file extension

.mxml

Adobe Flex interface markup file.

An .mxml file is an XML style text file, used when building Adobe Flex applications. Each .mxml file is written using XML and may contain several different types of elements including definitions for components, component interfaces, templates, graphics and/or ActionScript.

The precise reason for naming the extension ".mxml" is unclear. The file format was first introduced by macromedia (who were later taken over by Adobe in 2005). So the first "m" in mxml may simply stand for Macromedia, which would make the file a Macromedia XML file or MXML. The file extension has been suggested to stand for "Magic eXtensible Markup Language", but this acronym is of more recent origin.

For more information see:

• http://livedocs.adobe.com/flex/3/html/help.html?content=mxmlcomponents_2.html - Flex 3: About MXML components.
• http://help.adobe.com/en_US/flex/using/WSd0ded3821e0d52fe1e63e3d11c2f44bc36-7ff2.html - Flex 4: Documenting MXML files.
• http://en.wikipedia.org/wiki/MXML - MXML Wikipedia entry.

Can you add to this? Do you know of any applications not already listed which will work with .mxml files, view .mxml files or open .mxml files? Are you able to contribute any additional reference information or file format information about .mxml files or have you spotted any errors or omissions? If so please let us know by emailing us at feedback@cryer.co.uk - Thank you.