How to use the IF function (combined with the AND, OR, and NOT functions) in Excel to make logical comparisons between given values.| support.microsoft.com
Multiple IF functions can be nested together to allow for multiple criteria. The Excel IF function statement allows you to make a logical comparison between a value and what you expect by testing for a condition and returning a result if True or False.| support.microsoft.com
How to use the IF function in Excel to make logical comparisons between data values.| support.microsoft.com