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I won the Microsoft Excel World Championship. Here's what every office worker should know about Excel

This as-told-to essay is based on a conversation with Diarmuid Early, the 40-year-old winner of the 2025 Microsoft Excel World Championship. It's been edited for length and clarity. I've been in the ...

I won the Microsoft Excel World Championship. Here's what every office worker should know about Excel.

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