I have an MS excel document saved in my note. After I open it from within Evernote and modify the document, and sync Evernote, it is not saving back into Evernote. The modified document is saved in my files outside of Evernote. The implication is that I cannot see the latest version of the modifed document when I re-open Evernote. How do I open, modify and save an attachment so that the modified version is available next time I open Evernote.