Susan Allan

Every study that has looked for errors has found them in considerable numbers. Spreadsheeting's childhood is over.

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.

Research concludes unanimously that spreadsheet errors are both common and non-trivial. We must seek ways to reduce spreadsheet errors.

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

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

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

Overconfidence is one of the main causes of spreadsheet errors. Being informed about overconfidence leads to more accurate spreadsheets.