How to perform conditional formatting on Excel template when old value is not equal to new

Summary: I have built a Changes only extract to get the employee Demographic information and getting data in Excel format in separate sheets. First sheet contains new hires and second contains changes, and third sheet contain terminations. Now need to perform a conditional formatting that when old value is not matching with new want to highlight that data.

Can anyone help me on this how to do this conditional formatting.

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