Charles R. Litecky

Creating a slow spreadsheet is easy. Creating an efficient spreadsheet requires more thought and application of specific techniques.

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

Research concludes unanimously that spreadsheet errors are both common and non-trivial. We must seek ways to reduce spreadsheet errors.

See our bibliography of spreadsheet best practice, risk management, errors and testing, and methods for improving spreadsheets.

Our spreadsheet methodology has criteria for designing, building, and validating spreadsheets to ensure that they work correctly.

Spreadsheet audit and review procedures are an essential part of almost all City of London financial transactions.

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

"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.