I just purchased the 1520 today. I've got pretty much everything set up and running good. The only problem Im running into right now is I can't edit any of the excel documents I email back to my to myself after I got this phone. The phone will only let me view them, that's it. Anyone have any idea what im doing wrong, or not doing? I don't know if this matters but I didn't set up the office 365 account thing. Before today Ive always edited the excel docs I had/needed on my galaxy tablet with no problem. I email said docs from the galaxy tab to this phone. I can't believe that would make a difference.