"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.
The twenty principles for good spreadsheet practice aims to reduce the amount of time wasted and the number of errors.
Good spreadsheets are essential for informing decision making. But most spreadsheets are not good. We help you make better spreadsheets.
Only a quarter of survey participants were satisfied with their spreadsheet testing. Their techniques are largely manual and lack formalism.
Solver Max provides a collection of optimization model examples in Excel (using the Solver and OpenSolver add-ins) and Python.
The cascading structure of typical spreadsheet formulae means that just about every spreadsheet is almost certainly wrong.
See our bibliography of spreadsheet best practice, risk management, errors and testing, and methods for improving spreadsheets.
Your spreadsheets may be disasters in the making. Strive for spreadsheets that are validated, reliable, and auditable.
We can help you make better spreadsheets:
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