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 ...

Have you ever stared at a colorful Excel spreadsheet, wondering how to quickly calculate totals or counts based on cell colors? It’s a common frustration for anyone managing large datasets. While ...