IFS

IFS is a multiple IF-function.

IFS(expression1; result1[; expression2; result2][; ... ; [expression127; result127]]) expression1, expression2, ... are any boolean values or expressions that can be TRUE or FALSE result1, result2, ... are the values that are returned if the logical test is TRUE IFS( expression1, result1, expression2, result2, expression3, result3 ) is executed as IF expression1 is TRUE THEN result1 ELSE IF expression2 is TRUE THEN result2 ELSE IF expression3 is TRUE THEN result3 To get a default result should no expression be TRUE, add a last expression that is always TRUE, like TRUE or 1=1 followed by the default result. If there is a result missing for an expression or is no expression is TRUE, a #N/A error is returned. If expression is neither TRUE or FALSE, a #VALUE error is returned.

COM.MICROSOFT.IFS

IFS wiki page.