Guowei Yang

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

Only a quarter of survey participants were satisfied with their spreadsheet testing. Their techniques are largely manual and lack formalism.

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.

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

This early spreadsheet, a Babylonian clay tablet c.1800 BC, contains several errors. How many errors do your spreadsheets have?

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.