There is also the occasional - ctrl c, alt es v. And then realize you copied date values along with your data.

Excel is great, until that moment that you do something in haste over a large set of heterogenous data and cells.

And if you are doing finance, a world of pain awaits you.

edit: One other gripe about it, is if you use a macro, you can never use the easy ctrl-z out of whatever mistake you've just made.

Backups for a new analyst are few and far between. Backups for me a short while into my job could happen hourly.