ChatGPT launches Excel and Google Sheets: GPT-5.5 logs in directly to spreadsheets, with a three-way showdown between Copilot and Gemini

OpenAI officially launched two official add-ons—ChatGPT for Excel and ChatGPT for Google Sheets—on May 5 (U.S. time). After users install them, they can directly call GPT-5.5-powered assistants inside their spreadsheets to handle tasks such as data analysis, formula writing, and spreadsheet updates. In its official tweet, ChatGPT emphasized that the core of the new tools is “explain what it’s doing along the way”—not only giving results, but also showing users the reasoning process to reduce the sense of an AI black box. The simultaneous rollout on Microsoft and Google’s two mainstream spreadsheet platforms is a clear signal that OpenAI has officially entered the “enterprise productivity AI” battlefield.

Four core functions: analysis, formulas, updates, explanations

The scope of ChatGPT for Excel/Sheets add-on features:

Analyze messy data—users paste raw data in, and ChatGPT directly determines categories, cleans it up, and converts it into usable structure

Auto-write formulas—tell ChatGPT what you want to compute, and it directly generates Excel/Sheets formulas and inserts them into cells

Update spreadsheets—integrate contents from multiple spreadsheets, or batch modify existing data based on conditions

Explain while doing—during each action, use natural language to explain the logic so users can follow along and also manually fix things easily

For non-engineer office users, these four features directly cover the core pain points of everyday spreadsheet work: “data is too messy and I don’t know how to organize it,” “I can’t write formulas,” and “I don’t know why the results come out that way.” Embedding ChatGPT into the workflow—without switching to a browser tab—is a key selling point OpenAI is making to enterprises.

Matched against: Microsoft Copilot vs Google Gemini vs ChatGPT, three-way competition

This case breaks the previous “use your own spreadsheet’s own AI” pattern:

Microsoft Excel: Microsoft previously pushed Microsoft Copilot (based on OpenAI models, but with Microsoft’s own integration layer). This time, ChatGPT is directly available and creates two choices within the same interface as Copilot.

Google Sheets: Google previously pushed its own Gemini AI assistant. ChatGPT’s entry into Workspace is more unusual, because Google typically does not open up an opponent’s core AI within its own productivity suite.

ChatGPT: via the add-on route, bypassing Microsoft’s Copilot interface and Google’s Workspace limitations, going directly to enterprise end users.

This setup is good news for users—within the same spreadsheet, they can choose different AI assistants and switch to the best tool depending on the task. For Microsoft and Google, their own AI assistants are now facing direct competition, and they must prove that “my own AI is better than ChatGPT in spreadsheet scenarios.”

Context background: abmedia reported on May 4 that Anthropic, Goldman, and Blackstone jointly formed a $1.5 billion AI venture, sending engineers to embed into the PE portfolio companies. Anthropic’s strategy is to “place people on site,” while OpenAI’s strategy is to “directly integrate into existing tools”—the two clearly diverge in their approaches to enterprise AI deployment.

Practical significance for readers in Taiwan

For Taiwan’s heavy Excel/Google Sheets users:

Add-on installation paths: Microsoft AppSource (Excel) and Google Workspace Marketplace (Sheets)

Requires ChatGPT Plus ($20/month) or above; the Free version has limited features

Data privacy: The ChatGPT for Workspace version follows OpenAI’s “data not used to train models” commitment for enterprise customers, but data is still sent to OpenAI cloud for processing

For Taiwan’s financial industry and compliance teams handling sensitive data, they need to assess first whether internal spreadsheet data can be sent to OpenAI servers

This update to the ChatGPT add-on is an important step in OpenAI’s “break into offices with tools” strategy. In the future, PowerPoint, Word, Outlook, and Gmail can be expected to have similar integrations, forming a closed loop of “one ChatGPT across all productivity software.”

This article “ChatGPT is now available for Excel and Google Sheets: GPT-5.5 directly launches in spreadsheets, with Copilot and Gemini going head-to-head” first appeared on Chain News ABMedia.