I opened Excel to demonstrate a formula... and Copilot started writing it for me! Not a vaguely similar formula. The exact formula I was about to teach. Quite an interesting moment when you are …
How to choose an AI model in Copilot in Excel
You open Copilot in Excel to get some work done.... Now there's another decision to make: which AI model should you use? Microsoft is adding more choices. In September 2026, it announced Grok …
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How to think about technical books now that AI has the recipes
The future of the technical book looks a lot like what already happened to cookbooks. I say this as someone who has written two technical books for O'Reilly, runs live Excel and AI training for …
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How to escape the free Excel content friendzone
Anyone who spends enough time teaching Excel publicly through blogs, webinars, conference talks, or LinkedIn posts eventually runs into a strange dynamic. People genuinely appreciate your work. …
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How to get better results from Excel AI assistants
One thing Excel AI assistants like Copilot and Claude really need is a way to load system-level preferences and modeling instructions. Right now, when you ask these tools to build a workbook, they …
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How to understand the difference between Excel AI workflows and Excel AI agents
Lately it seems like every conversation about AI revolves around “agents.” Agentic systems, agentic workflows, autonomous agents. At the same time, people still talk about automation workflows, and …