The cascading structure of typical spreadsheet formulae means that just about every spreadsheet is almost certainly wrong.
Overconfidence is one of the main causes of spreadsheet errors. Being informed about overconfidence leads to more accurate spreadsheets.
We are conscious of very few of our errors. When people are confronted with their actual error rates, they are typically shocked.
"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.
This early spreadsheet, a Babylonian clay tablet c.1800 BC, contains several errors. How many errors do your spreadsheets have?
A poorly documented spreadsheet erodes effective use. Our workshops help students develop good documentation habits and skills.
Solver Max provides a collection of optimization model examples in Excel (using the Solver and OpenSolver add-ins) and Python.
Our spreadsheet methodology has criteria for designing, building, and validating spreadsheets to ensure that they work correctly.
We can help you make better spreadsheets:
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