Jisurk Pyun

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

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

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

Solver Max provides a collection of optimization model examples in Excel (using the Solver and OpenSolver add-ins) and Python.

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

"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.

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

The cascading structure of typical spreadsheet formulae means that just about every spreadsheet is almost certainly wrong.