The cascading structure of typical spreadsheet formulae means that just about every spreadsheet is almost certainly wrong.
This early spreadsheet, a Babylonian clay tablet c.1800 BC, contains several errors. How many errors do your spreadsheets have?
We are conscious of very few of our errors. When people are confronted with their actual error rates, they are typically shocked.
Our spreadsheet methodology has criteria for designing, building, and validating spreadsheets to ensure that they work correctly.
Creating a slow spreadsheet is easy. Creating an efficient spreadsheet requires more thought and application of specific techniques.
See our bibliography of spreadsheet best practice, risk management, errors and testing, and methods for improving spreadsheets.
We can help you make better spreadsheets: