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Essential reading

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.
"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.
Good spreadsheets are essential for informing decision making. But most spreadsheets are not good. We help you make better spreadsheets.
60% of large companies feel 'Spreadsheet Hell' describes their reliance on spreadsheets either completely or fairly well.
Solver Max provides a collection of optimization model examples in Excel (using the Solver and OpenSolver add-ins) and Python.