Block bad data, duplicates, and incorrect dates with these custom rules.

Understanding how cells behave in relation to one another is essential to getting the most out of Microsoft Excel. When you're working with multiple worksheets simultaneously, it can become tedious to ...

If you’re a full-time spreadsheet jockey, or just a casual number-cruncher, you’ve come to know and either love or hate Excel’s interface. Well, your world just changed. Throw away almost everything ...