Microsoft has launched Agent Mode in Excel and Word and Office Agent in Copilot chat, introducing what the company calls “vibe working” to Microsoft 365 Copilot. The features are designed to help users create spreadsheets, documents, and presentations through iterative, prompt-based collaboration with AI.
The rollout begins with limited availability. Agent Mode in Excel and Word is now available starting today for Microsoft 365 Copilot-licensed customers, as well as Microsoft 365 Personal or Family subscribers in the Frontier program.
Office Agent in Copilot chat is currently offered to Microsoft 365 Personal or Family subscribers in the United States, where it works in English on the web.
“Agent Mode delivers AI that can ‘speak Excel’ natively,” said Sumit Chauhan, corporate vice president of Microsoft’s Office Product Group, in a blog post. She added that it combines the depth of Excel’s data structures with OpenAI’s latest reasoning models, aiming to make advanced modeling accessible to a wider range of users beyond experts.
In Excel, Agent Mode enables the AI to generate outputs, validate results, and repeat tasks until outcomes are verified. Microsoft says it democratises access to expert-level modelling, with tasks such as financial analysis, loan calculations, and household budgeting. According to Microsoft’s evaluation of the SpreadsheetBench benchmark, Copilot in Excel Agent Mode achieved 57.2% accuracy.
In Word, Agent Mode turns document creation into what Microsoft calls “vibe writing.” Users can issue prompts such as updating reports, cleaning up formatting, or drafting project summaries, while Copilot refines drafts, suggests edits, and asks clarifying questions.
Office Agent in Copilot chat, powered by Anthropic models, brings presentation and document creation into a chat-first interface. The tool can clarify user intent, conduct research, and generate presentations or documents. Microsoft says Office Agent addresses earlier gaps in AI slide creation.
For example, prompts can include creating a market trends deck, planning a restaurant pop-up kitchen, or preparing retirement savings plan slides. “Office Agent creates tasteful, well-structured PowerPoint decks and ready-to-use Word documents,” Microsoft noted.
