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Every study that has looked for errors has found them in considerable numbers. Spreadsheeting's childhood is over.

Errors in the data, formulas, or manipulation of spreadsheets could be costly, even devastating.

Good spreadsheets are essential for informing decision making. But most spreadsheets are not good. We help you make better spreadsheets.

"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.

See our bibliography of spreadsheet best practice, risk management, errors and testing, and methods for improving spreadsheets.

Research concludes unanimously that spreadsheet errors are both common and non-trivial. We must seek ways to reduce spreadsheet errors.

Our spreadsheet methodology has criteria for designing, building, and validating spreadsheets to ensure that they work correctly.

Do you document your spreadsheets? We use the FizzBuzz word game to illustrate the importance of documenting your spreadsheets.