Last time I use a cloud spreasheet was a month ago, to download the content into Excel
> I also wouldn't use excel for anything that has a combination of high importance and long lifetime though. It's mostly for some brainstorming or thrown in a presentation as a screenshot.
It's funny but that's exactly how I see online spreadsheet: for unimportant things that may not work at any point in the future if the account is closed. However, the collaborative features make them nice for brainstorming.