android - Download an xml file rss feed Xamarin -

i have file in project called xamarin home empty. want download rss feed , subscribe inicio.xml file rss feed materials

imagem

rss feed

http://pox.globo.com/rss/g1/brasil/

xdocument rss = system.xml.linq.xdocument.load(url);  rss.save(filepath); 

note contents of android app package not writable - need write 1 of user writable documents folders, or external storage.