This is a packaged version of Ezra’s Python script provided on the forum. It simply gets basic Room parameter values (Name, Area) and outputs to a given XML file. Provide full path including extension on the input node. Future version may need alternate unit comprehension.
Group:Bakery.XML
XPATH Expression Find for Element Tree
Update:
New version allows traversal of XML sub-elements, as shown below.
Description:
A tool that allows extracting specific data from an XML file.
Source: http://whatrevitwants.blogspot.com.au/2015/11/read-xml-files-and-use-in-revit-with.html