Every study that has looked for errors has found them in considerable numbers. Spreadsheeting's childhood is over.
95% of all spreadsheets contain errors. So, it is almost certain that your spreadsheets are wrong.
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.
Once information is loaded into a spreadsheet, it acquires properties that it may not deserve – a process called reification.
Incorrect use of Excel's NPV function is a common source of spreadsheet errors. We show several pitfalls and ways to avoid them.
Spreadsheets have errors like dogs have fleas. Nine out of every ten spreadsheets suffer some error, and consequences can be severe.
Spreadsheet errors are reduced by using good design. Our students do three assignments to acquire good spreadsheet design skills.
We can help you make better spreadsheets:
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