Q. I have an Excel spreadsheet that contains errors because some of the numbers that are part of the calculations are blank or zero. Is there a way to have Excel automatically return something instead ...

Master Excel’s most versatile logical gatekeeper to validate inputs, prevent math crashes, and automate complex spreadsheet ...

Data validation in Microsoft Excel is a great way to limit what can be entered into a cell. However, creating rules using a formula allows you to enforce even more precise parameters—and there are ...