Diarmuid Early won first place in the 2025 Microsoft Excel World Championship. He has some pointers for using Excel at work.

Build a fast Excel money tracker with SUMIFS totals, color coding, and charts, so you see monthly savings and trends without manual work.

Excel's query tool reshapes messy imports into 1NF, so AVERAGEIFS replaces hacks and your summaries run faster.

You probably don't put much thought into brushing your teeth. If you use an electric toothbrush, you assume it's getting your teeth cleaner than a manual toothbrush. However, there are better ways to ...