Prevent broken formulas using tables, validation rules, separate worksheets, named variables, and the power of LAMBDA.

Skip tables when you need spilled results, presentation-ready layouts, one-off modeling logic, or stable protected data-entry templates.

Formulas are one of the most important components of an Excel sheet and as such, deserve–warrant–protection. You don’t want users accidentally changing formulas and impacting the purpose of your work.

Have you ever carefully crafted a formula in Excel, only to watch it unravel into chaos the moment you copy it across columns? It’s a maddening quirk of Excel tables—structured references that seem to ...

Please note: This item is from our archives and was published in 2005. It is provided for historical reference. The content may be out of date and links may no longer function. Q. When I circulate my ...

Formulas are powerful tools for performing calculations and analyzing data in Excel. In this beginner’s guide, you’ll learn how to use formulas and explore some popular built-in functions. One of the ...