What can Microsoft 365 Copilot do? A 2026 guide

Copilot goes well beyond drafting and summarising: it works across your Microsoft 365 content, sits alongside Copilot Chat for lighter use, and connects to agents that can carry out whole pieces of work through Copilot Cowork.

The three flavours of Copilot, briefly

Copilot Chat gives broad AI assistance without deep access to your business content. Microsoft 365 Copilot works inside your apps and is grounded in the files, emails and meetings you already have permission to see. Copilot Cowork goes a step further, letting you hand a piece of work to an agent that runs in the background. Our plain English comparison sets out which fits which team.

Analysis in Excel

Copilot can explain a dataset, suggest formulas, build pivot summaries and highlight trends without you writing the logic yourself. It is genuinely useful for finance and operations teams working with structured tables, and far less useful where data is inconsistent, so a tidy source matters more than a clever prompt.

Managing the inbox in Outlook

Long email threads can be summarised, replies drafted in your preferred tone, and actions pulled out so nothing gets lost. Teams that adopt this properly usually report it as the single biggest daily time saving.

Meetings and follow-ups in Teams

Copilot produces recaps, notes decisions and captures actions with owners, which is particularly valuable for anyone who missed the call. It can also answer questions during a meeting based on what has already been said.

Drafting and rewriting in Word

Copilot drafts from a prompt or an existing document, rewrites sections in a different tone and condenses long content into something readable. Treat the output as a first draft rather than a finished piece, and it saves a considerable amount of time.

Building decks in PowerPoint

A document can become a structured deck in minutes, complete with speaker notes, and existing decks can be restructured or shortened. Branding and accuracy still need a human pass before anything goes to a client.

What to put in place first

Copilot inherits your permissions, so anything overshared is now much easier to find. Before a wider rollout, review SharePoint and Teams access, retire duplicate content, agree what people should and should not put into AI tools, and pick a pilot group with clear use cases. Our readiness checklist walks through this in order.

The organisations getting real value from Copilot in 2026 are not necessarily the ones with the most licences. They are the ones who tidied their data, trained their people and measured what changed.

If you are working out where Copilot fits in your business, get in touch for an initial chat.

For help deciding which capabilities are worth rolling out first, see our AI consultancy service.