Jill Cao

Spreadsheet errors are reduced by using good design. Our students do three assignments to acquire good spreadsheet design skills.

95% of all spreadsheets contain errors. So, it is almost certain that your spreadsheets are wrong.

Errors in the data, formulas, or manipulation of spreadsheets could be costly, even devastating.

Your spreadsheets may be disasters in the making. Strive for spreadsheets that are validated, reliable, and auditable.

"Oh My God" my formulas are not working! This article covers most of the reasons for Excel formulas not working. And how to fix them.

Spreadsheets have errors like dogs have fleas. Nine out of every ten spreadsheets suffer some error, and consequences can be severe.

Good spreadsheets are essential for informing decision making. But most spreadsheets are not good. We help you make better spreadsheets.

A poorly documented spreadsheet erodes effective use. Our workshops help students develop good documentation habits and skills.