How to use Excel IF function

Answer: The Excel IF function can judge based on a certain condition and return different values. Its usage is: IF (condition, value 1, value 2), where the condition is a relational expression, and value 1 and value 2 are the values ​​returned when the condition is true and not true respectively. For example: IF(A1>B1, "A is big", "B is big"), which means that if the value of A1 is greater than the value of B1, then "A is big" is returned, otherwise "B is big" is returned.