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 ...

Your passkey future requires an authenticator, but which type is best - platform, virtual, or roaming? We help make sense of your options.