In reaction to pwlow: You have to use a key you can see in your address bar while editing your spreadsheet, not the one from the link pointing to a html version, at least in the current version of spreadsheets. It doesn't seem to be clear from the article.
In reaction to pwlow: You have to use a key you can see in your address bar while editing your spreadsheet, not the one from the link pointing to a html version, at least in the current version of spreadsheets. It doesn't seem to be clear from the article.