This early spreadsheet, a Babylonian clay tablet c.1800 BC, contains several errors. How many errors do your spreadsheets have?
Every study that has looked for errors has found them in considerable numbers. Spreadsheeting's childhood is over.
Research concludes unanimously that spreadsheet errors are both common and non-trivial. We must seek ways to reduce spreadsheet errors.
Overconfidence is one of the main causes of spreadsheet errors. Being informed about overconfidence leads to more accurate spreadsheets.
See our bibliography of spreadsheet best practice, risk management, errors and testing, and methods for improving spreadsheets.
Once information is loaded into a spreadsheet, it acquires properties that it may not deserve – a process called reification.
Do you document your spreadsheets? We use the FizzBuzz word game to illustrate the importance of documenting your spreadsheets.
The cascading structure of typical spreadsheet formulae means that just about every spreadsheet is almost certainly wrong.
We can help you make better spreadsheets:
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