"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.
Research concludes unanimously that spreadsheet errors are both common and non-trivial. We must seek ways to reduce spreadsheet errors.
This early spreadsheet, a Babylonian clay tablet c.1800 BC, contains several errors. How many errors do your spreadsheets have?
The twenty principles for good spreadsheet practice aims to reduce the amount of time wasted and the number of 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.
See our bibliography of spreadsheet best practice, risk management, errors and testing, and methods for improving spreadsheets.
Incorrect use of Excel's NPV function is a common source of spreadsheet errors. We show several pitfalls and ways to avoid them.
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