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

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

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

Our spreadsheet methodology has criteria for designing, building, and validating spreadsheets to ensure that they work correctly.

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

Spreadsheet audit and review procedures are an essential part of almost all City of London financial transactions.

95% of all spreadsheets contain errors. So, it is almost certain that your spreadsheets are wrong.

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