A few months ago, I opened one of the formulas in my sales sheet and stared at it for a second too long. It read =G15*0.05. The 0.05 could've been a tax rate, a commission, or a number I'd typed in by ...

Named ranges are the secret to self-documenting Excel workbooks, but naming cells manually is a tedious chore. By using a simple selection trick, you can instantly map your headers to your data, ...