title: EXCEL XOR multiple bits
body: <p>I have two cells with a string of bits 0111010 and 0101011. I want to XOR the two together so that the resulting cell would be 0010001.</p>
  <p>I know you can use this for boolean values</p>
  <pre><code>=OR(AND(A1,NOT(A2)),AND(A2,NOT(A1)))
  </code></pre>
  <p>but it doesn't work for a string of bits.</p>