Andrea Hofler

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.

See our bibliography of spreadsheet best practice, risk management, errors and testing, and methods for improving spreadsheets.

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

"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.

Incorrect use of Excel's NPV function is a common source of spreadsheet errors. We show several pitfalls and ways to avoid them.

The twenty principles for good spreadsheet practice aims to reduce the amount of time wasted and the number of errors.

Connexion is a collection of the most useful and interesting spreadsheet-related articles from the web.