Sandbox

{{#get_web_data:url=http://producthelp.sdl.com/SDL%20Trados%20Studio/client_en/sample.xml |format=xml |use xpath |data=salutation=/letter/salutation,maxlength=/letter/title[2]/@maxlength,address=/letter/address[@translate='no'],url=/letter/weblink}}

Salutation: {{#external_value:salutation}}