Excel to XL

The twenty principles for good spreadsheet practice aims to reduce the amount of time wasted and the number of errors.

Errors in the data, formulas, or manipulation of spreadsheets could be costly, even devastating.

Your spreadsheets may be disasters in the making. Strive for spreadsheets that are validated, reliable, and auditable.

Solver Max provides a collection of optimization model examples in Excel (using the Solver and OpenSolver add-ins) and Python.

A poorly documented spreadsheet erodes effective use. Our workshops help students develop good documentation habits and skills.

Once information is loaded into a spreadsheet, it acquires properties that it may not deserve – a process called reification.

This article walks you through different methods and built-in tools that can be used to audit and debug Excel spreadsheets.

Incorrect use of Excel's NPV function is a common source of spreadsheet errors. We show several pitfalls and ways to avoid them.