Bill Jelen

Excel MVP, Author of 60 books: Excel, Pivot Tables, Power Pivot, VBA. Publisher at Holy Macro! Books. Fan of Bruce Springsteen.

[Bill Jelen @MrExcel]

Quick Survey: Have you given your Chatbot a name and/or gender? https://t.co/EWLaCgzIyb

[Charles Lamanna @clamanna]

Copilot Cowork is now generally available!

Over the last few months of preview in Frontier, we’ve seen you use Cowork to help with so many different tasks. We’ve also been listening closely to your feedback and with GA, we’re bringing you more improvements + new features across model choice, extensibility through plugins, browser automation, and cost management controls.

Here’s a quick demo showing the latest updates in action - inspired by some of my own day-to-day tasks. You can also read more in the blog linked below...

[Bill Jelen @MrExcel]

With @msexcel now offering a native choice between @AnthropicAI Claude Opus 6.3 and @OpenAI GPT 5.2, I show how that Hanks Pizza Copilot commercial would have given even better advice by choosing Claude. https://t.co/M84o94Gks7

[Bill Jelen @MrExcel]

@ZackKorman Dear Zack: “SUM the numbers that I refuse to show you.” Why would I expect you had any hope of solving it?

[Bill Jelen @MrExcel]

Microsoft Excel turns 40 on September 30, 2025. To celebrate, I’m giving you 40% off any e-books in the MrExcel Store.Use code excel40 at checkout before midnight, September 30. https://t.co/VJPzfGHNZ4

[Bill Jelen @MrExcel]

#Excel turns 40 today! While waiting for the hot new Agent Mode to build an inventory tracker, I created this Excel at 40 song: https://t.co/iROFkmRUGj

[Bill Jelen @MrExcel]

This is a nice #Excel mousepad full of shortcuts: https://t.co/sXnG0R4B7D

[Bill Jelen @MrExcel]

I call it the AutoSum. It is one of the top 5 Excel commands. What are the weirdest names you've heard workers use for this icon?

[Bill Jelen @MrExcel]

🚨 Excel update alert! 🚨

PivotTables now auto-refresh in the Insiders Fast build! No more clicking “Refresh”—data changes update your PivotTable instantly. 🙌

✅ Real-time updates
✅ Handles new rows
✅ Works across shared caches
Game-changer! 🔥 https://t.co/x0DiZAyQGF

[Bill Jelen @MrExcel]

Train Your Own GPT will get you up to speed with Custom GPTs that think and write like you. https://t.co/jqwW7UFu5m

[Bill Jelen @MrExcel]

Built a Copilot agent to search 2,500 MrExcel videos.
It works… until it doesn’t.
Finds results, builds table — then forgets how to Insert to Excel.
Icon broke it. Clipboard is the fallback.
Feels 90% done, 100% maddening.
🎥 https://t.co/S2EG9xfd2F
Am I just holding it wrong?

[Bill Jelen @MrExcel]

Built a custom GPT in ChatGPT — works flawlessly.
Copied it into Copilot Studio — same setup, but… nothing works.
Why?
Provisioning delay? File type issues? Broken insert?
🎥 Flawed insight, in-progress debug:
https://t.co/zokyWahDCo

[Bill Jelen @MrExcel]

Do you have that annoying little Copilot icon that follows your cell pointer around in #Excel? Kill it for good: https://t.co/MyMSnPYzBJ

[Bill Jelen @MrExcel]

Always an exciting day when a new book arrives. Here is my 69th book. It is now available at Amazon: https://t.co/KlmKbNbRke

[Bill Jelen @MrExcel]

Let's hear it... have YOU ever used Excel for holiday meal planning? In today's video, Katie suggests letting Excel randomly assign side dishes with mixed results. https://t.co/KjgbK5Ilcm What features are in YOUR holiday planning spreadsheet. Let me know below.

[Bill Jelen @MrExcel]

AR: Big check arrives, but which invoices are being paid? NEW solution, one formula, using Python in Excel makes this fast and easy. https://t.co/qVYiFNegza

[Bill Jelen @MrExcel]

Highlight the active cell in Beta. View, Focus Cell. Choose one of 10 colors. The highlighting is above the grid, below the drawing layer. It does not destroy any existing formatting. And, it is fast. Short video demo: https://t.co/i2o5acP1Yf

[Bill Jelen @MrExcel]

The SEC numbers were all text due to a weird character! 🤯 How did Copilot get the right answers with this mess? Learn how to fix Character 160 Non-Breaking Spaces in today’s video! 💡📊 #ExcelTips #Copilot https://t.co/gFMMC3QUaG

[Bill Jelen @MrExcel]

Copilot in OneDrive runs circles around Copilot in Excel!? https://t.co/EssEPtuuKW

[Bill Jelen @MrExcel]

Microsoft announces Copilot with Excel with Python in beta. Amazing 3-minute test spin: https://t.co/2znN9XY3A5