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 ...
Spreadsheets used to be the backbone of every small business. Budgets, client lists, payroll, invoices, you name it, it lived ...