A function is a built-in formula in Excel — basically, a shortcut for performing a calculation or other operation on cell data. There are nearly 500 Excel functions, and the list continues to ...

Use array formulas: Use built-in functions like `FILTER` to minimize processing time and reduce formula complexity. Reuse intermediate results: Avoid redundant calculations by storing intermediate ...

Built-in functions work best when you have simple or small data to calculate, such as when you want your total earnings for the month or year. Suppose you also want to do your taxes or inventory ...