Information about the .mspx (mspx) file type

Below is all the information we have available on file about the .mspx (mspx) file type.

.mspx
XML based web page. File extension used by Microsoft in conjunction with their content management system. It appears to be an ASP .net generated file (and is therefore similar in purpose to a .aspx file).

Where this is available we would like to include file format information on .mspx files, as well as information on how to view or open files of type .mspx. If you know of any information which we have missed then please let us know.