A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
Interestingly, I also just looked through the 2nd method you listed. Even though the "text box" icon is back in my main Insert toolbar, when I go to that Commands page of the Customize... dialogue, then look for "text box" in the commands list (after selecting Insert from Categories), the text box icon still doesn't show up there. But at least I've got it back in the main insert drop-down...