Don't fall into the trap of masking structural errors in your spreadsheet.

Block bad data, duplicates, and incorrect dates with these custom rules.

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 ...

Q: I found an anomaly with a rather simple Excel computation; specifically, Excel calculates 111,111,111 times 111,111,111 to equal 12,345,678,987,654,300, which is ...

Have you ever crafted the perfect Excel formula, only to be greeted by the dreaded #VALUE! error instead of the seamless results you expected? It’s a frustrating ...

You may want to create mandatory fields in your Excel spreadsheet -- fields that must be filled in before you can save the document. When a field is made mandatory, there is no risk of leaving out ...

This article talks about #DIV/0! error in Microsoft Excel and how to fix it up. The #DIV/0! error occurs when a number is divided by 0 in Excel. It also shows up when ...