Apple is currently touting
iWork for iCloud beta, which includes
Numbers for iCloud beta:
"You can upload Numbers ’09 or Microsoft Excel spreadsheets to Numbers for iCloud beta from a Mac with OS X Lion (v10.7) or later installed."I'm not sure that's of much use to you, though; if you're just looking for a safe online parking spot for any kind of files, something like Dropbox is more appropriate.
