This early spreadsheet, a Babylonian clay tablet c.1800 BC, contains several errors. How many errors do your spreadsheets have?
See our bibliography of spreadsheet best practice, risk management, errors and testing, and methods for improving spreadsheets.
Spreadsheets have errors like dogs have fleas. Nine out of every ten spreadsheets suffer some error, and consequences can be severe.
Once information is loaded into a spreadsheet, it acquires properties that it may not deserve – a process called reification.
95% of all spreadsheets contain errors. So, it is almost certain that your spreadsheets are wrong.
Every study that has looked for errors has found them in considerable numbers. Spreadsheeting's childhood is over.
Spreadsheets can be considered to be the world's most successful end-user programming language. Spreadsheet formulas are Turing complete.
Solver Max provides a collection of optimization model examples in Excel (using the Solver and OpenSolver add-ins) and Python.
We can help you make better spreadsheets:
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