These four overlooked Excel features completely changed how I design spreadsheets.

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

Excel has over 475 formulas in its Functions Library, from simple mathematics to very complex statistical, logical, and engineering tasks such as IF statements (one of our perennial favorite stories); ...

Excel macros are like mini-programs that perform repetitive tasks, saving you a lot of time and typing. For example, it takes Excel less than one-tenth of a second to calculate an entire, massive ...