This early spreadsheet, a Babylonian clay tablet c.1800 BC, contains several errors. How many errors do your spreadsheets have?
This article walks you through different methods and built-in tools that can be used to audit and debug Excel spreadsheets.
Incorrect use of Excel's NPV function is a common source of spreadsheet errors. We show several pitfalls and ways to avoid them.
We are conscious of very few of our errors. When people are confronted with their actual error rates, they are typically shocked.
Once information is loaded into a spreadsheet, it acquires properties that it may not deserve – a process called reification.
Overconfidence is one of the main causes of spreadsheet errors. Being informed about overconfidence leads to more accurate spreadsheets.
A poorly documented spreadsheet erodes effective use. Our workshops help students develop good documentation habits and skills.
See our bibliography of spreadsheet best practice, risk management, errors and testing, and methods for improving spreadsheets.
We can help you make better spreadsheets:
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