The badly thought-out use of Microsoft's Excel software was the reason nearly 16,000 coronavirus cases went unreported in England. And it appears that Public Health England (PHE) was to blame ...

What's unusual here is that someone checked it," says Ray Panko, a professor at the University of Hawaii and the elder statesman of small coterie of research academics who study—yes—Excel errors.

Excel's role in trading losses raises concerns about reliance on technology in financial markets.