How to Use Excel Formulas and Functions?

To use Excel formulas and functions, begin by typing an equal sign (=) in a cell. Enter the desired operation (e.g., +, -, *, /) for formulas or use functions like SUM, AVERAGE, or VLOOKUP by typing the function name followed by parentheses with the required arguments (e.g., =SUM(A1:A10)) to perform calculations based on your data.