ChatGPT is now available as an add-on in Excel and Google Sheets. It can help analyze messy data, write formulas, update spreadsheets, and explain what it’s doing along the way—without leaving your spreadsheet. Powered by GPT-5.5.

@ChatGPTapp This is huge! Congrats on the release. ChatGPT add-on for Word next?

@ChatGPTapp I just installed gpt in my google sheets let's gooooooo

@ChatGPTapp Just one shotted this with the new Instant model, amazing

@ChatGPTapp This felt earned. Sigil One started as an Excel command center before it became a real app.

Automated our finance reporting stack in February. Nine-step Zapier. P&L exports to Sheets, runs through a tone analyzer, GPT summarizes, board gets a PDF. Board said the numbers looked 'surprisingly strong.' Our head of finance asked how. The tone analyzer had been labeling negative numbers as 'assertive' for 11 weeks.

@ChatGPTapp #keep4o

@ChatGPTapp From the back school the most dangerous place to give AI a job was always Excel!

@ChatGPTapp the 'explain what it's doing' part matters more than the formula writing. half the spreadsheets at every job i've had are formula minefields nobody can audit. is the explanation cell-local or chat-only?

@ChatGPTapp Claude had that plugin weeks ago...

@ChatGPTapp Holy macro - this technically changes everything.

@ChatGPTapp Every time I used ChatGPT to process excel data it only did part of the job - say 10 lines out of 1000. If this has not been fixed, not one person will use ChatGPT for excel.

@ChatGPTapp ChatGPT need 4o #keep4o #BringBack4o #OpenSource4o

@ChatGPTapp meeting Claude inside Excel and ChatGPT inside Sheets head-on. The 'where the AI lives' war matters more than the model war at this point read more in the brief below 👇

@ChatGPTapp How soon will add on ChatGPT for word and ppt

@ChatGPTapp Can it proactively make changes?

@ChatGPTapp the test is whether finance teams trust it. spreadsheets are sacred because formulas are predictable. one wrong vlookup from an llm and youre auditing 4000 rows by hand

@ChatGPTapp Claude did it better

@ChatGPTapp gpt-5.5 writing my excel formulas sounds like a dream until it hallucinates a circular reference that breaks my entire sheet 💀

@ChatGPTapp @nicdunz Is add-on plugin better than using the spreadsheet skill?

@ChatGPTapp #keep4o #OpenSource4o Give us back 4o!

@ChatGPTapp Please allow us to add skills for pro and plus plan It would be great if my skills synced through all the ecosystem ChatGPT app Codex app Codex CLI etc…

@ChatGPTapp Great. Now it has access to your balance sheets too. We've already shared everything else anyway. What's a few more numbers.

@ChatGPTapp Why does it seem like we get this announcement once every two weeks

@ChatGPTapp ChatGPT is now inside Excel and Google Sheets Users can create spreadsheets, fix formulas, analyze tabs, and automate tasks using AI directly inside their workbook. OpenAI’s spreadsheet upgrade is now rolling out. Learn more:

@ChatGPTapp This is huge for productivity. Spreadsheets were already powerful—now they’re becoming intelligent. Cleaning data, writing formulas, and analysis all in one place without switching tabs… Feels like Excel/Sheets just got a serious upgrade 🚀

@ChatGPTapp @llmgram

@ChatGPTapp This is the move that brings GPT to the people who actually live in spreadsheets all day. Not a new app to learn, just better answers where they already work. Curious how it handles messy enterprise data with mixed formats.

@ChatGPTapp Spreadsheets are where AI trust gets audited fast One wrong formula and suddenly your Q3 forecast is modern art😅

@ChatGPTapp watching my own team: the analysis that drives decisions sits in one analyst's sheet, not in BI. if this works half as well as the demo, a lot of 2026 vendor renewals get uncomfortable.

@ChatGPTapp Every company has that one person who "owns" the master spreadsheet. GPT-5.5 just applied for their job. In Excel. Without a CV 😁

@ChatGPTapp o11 mogs

@ChatGPTapp This is huge! Congrats on the release. ChatGPT add-on for Word next?

@ChatGPTapp Interesting! Has anyone tried it yet? What's your experience

@ChatGPTapp Bro its about time someone figured out how to make Excel usable again.

@ChatGPTapp spreadsheet automation has always been a black box that breaks silently. 'explain what it's doing' is the upgrade that makes accountants actually willing to use this in production. that part matters more than the formula writing.