I have Microsoft OneNote and have files I save to my SkyDrive.  It's great to save a file on SkyDrive, so that I can open it on 'Any computer or device'.  trouble is, when I go to my laptop and go to SkyDrive and download a file I've saved there it won't open the file.  The only option given is, "Open in OneNote"  Well, does this mean I can access my file on any computer, but can't open it unless I buy a different copy of OneNote for each device I have?  What if I'm at a friend's house and I say, "Oh, I have all my files on SkyDrive, can I use your computer to open them?  Then, when I log into SkyDrive I then can't download them to edit them, unless HE happens to have OneNote on his computer.  That was the appeal, wasn't it?  That as long as I had access to a computer I could access my files?  Right now I don't have access to my Surface, where my files are kept on OneNote.  But  there's no way to open the files, unless I'm missing something really obvious.  Am I?

I have five computers.  Do I have to buy Word or OneNote for EVERY computer?