Creating a slow spreadsheet is easy. Creating an efficient spreadsheet requires more thought and application of specific techniques.
Our spreadsheet methodology has criteria for designing, building, and validating spreadsheets to ensure that they work correctly.
See our bibliography of spreadsheet best practice, risk management, errors and testing, and methods for improving spreadsheets.
Solver Max provides a collection of optimization model examples in Excel (using the Solver and OpenSolver add-ins) and Python.
95% of all spreadsheets contain errors. So, it is almost certain that your spreadsheets are wrong.
Incorrect use of Excel's NPV function is a common source of spreadsheet errors. We show several pitfalls and ways to avoid them.
Every study that has looked for errors has found them in considerable numbers. Spreadsheeting's childhood is over.
"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.
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