Syntax: @XOR(argumentlist)
argumentlist = any combination of numbers, cells, or ranges
@XOR returns -1 if any argument is not 0 or 1; otherwise 1 if the total number of arguments with the value 1 is odd; 0 if the total number of arguments with the value 1 is even. Text and blank cells are ignored.
Examples:
A1 = 1, B1 = 1, C1 = 0, D1 = 0, E1 = 1 and A2 = 24
@XOR(A1, B1) = 0
@XOR(A1..E1) = 1
@XOR(A1..A2) = -1