See our bibliography of spreadsheet best practice, risk management, errors and testing, and methods for improving spreadsheets.
We are conscious of very few of our errors. When people are confronted with their actual error rates, they are typically shocked.
Solver Max provides a collection of optimization model examples in Excel (using the Solver and OpenSolver add-ins) and Python.
The cascading structure of typical spreadsheet formulae means that just about every spreadsheet is almost certainly wrong.
Spreadsheets can be considered to be the world's most successful end-user programming language. Spreadsheet formulas are Turing complete.
Every study that has looked for errors has found them in considerable numbers. Spreadsheeting's childhood is over.
Only a quarter of survey participants were satisfied with their spreadsheet testing. Their techniques are largely manual and lack formalism.
95% of all spreadsheets contain errors. So, it is almost certain that your spreadsheets are wrong.
We can help you make better spreadsheets:
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