Excel offers no such constraint. If someone is determined to enter bad data, they can simply paste values over a validated ...

The @ symbol can also appear in regular formulas outside of tables when Excel thinks you're trying to reference a single value from a range. If you see it pop up unexpectedly, it usually means Excel ...

Human development is influenced by, but not entirely determined by, our parents and our genes. Children may have very different personalities, and different strengths and weaknesses, than the ...