In my PAD flow, I need to open an Excel file that is stored on SharePoint. Using the standard "Launch Excel" action in PAD, I can't come up with a document path that works. I have tried navigating to the Excel file in SharePoint, opening the file in my desktop app, copying the path form the File/Info screen (taking out the ?web=1 part)... but the "Launch Excel" action doesn't seem to like it. Suggestions???