This early spreadsheet, a Babylonian clay tablet c.1800 BC, contains several errors. How many errors do your spreadsheets have?
The cascading structure of typical spreadsheet formulae means that just about every spreadsheet is almost certainly wrong.
The twenty principles for good spreadsheet practice aims to reduce the amount of time wasted and the number of errors.
95% of all spreadsheets contain errors. So, it is almost certain that your spreadsheets are wrong.
Solver Max provides a collection of optimization model examples in Excel (using the Solver and OpenSolver add-ins) and Python.
Errors in the data, formulas, or manipulation of spreadsheets could be costly, even devastating.
Incorrect use of Excel's NPV function is a common source of spreadsheet errors. We show several pitfalls and ways to avoid them.
Spreadsheets have errors like dogs have fleas. Nine out of every ten spreadsheets suffer some error, and consequences can be severe.
We can help you make better spreadsheets:
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