Request training | 070 - 216 4555
May 2026 · Issue 02

Copilot becomes more
of a colleague

The biggest change this month: Copilot now carries out tasks on its own in Word, Excel and PowerPoint. You open Copilot, choose Edit and let it adjust the document. We've translated these updates into what you can actually use today in a Dutch tenant.

01 · Tips

Three things you can try today

Open your own mailbox or a document and give it a go. Under each tip you'll see where it saves you time.

1

Let Copilot edit your document for you

Open a Word file in OneDrive or SharePoint, start Copilot and choose Edit. Ask, for example: "Turn this into a short management summary and put the action items in a table at the bottom." You accept or reject the changes one by one.

For people who work with documents a lot
2

Create one Notebook for your ongoing project

Working for weeks on a proposal, training or audit? Open the Microsoft 365 Copilot app and create a Notebook. Pin your files, notes and links to it. You don't have to provide the context each time — Copilot has everything to hand.

For longer-running projects
3

Choose deliberately which model answers you

In Copilot you choose between Quick and Think. Quick works fine for a summary, a translation or a short email. Think gives a better answer for a plan, a comparison or an analysis. You'll notice the difference straight away.

For frequent Copilot users
02 · New for everyone

Generally available this month

These changes simply appear. Your administrator doesn't have to do anything.

Available · 22 April

Edit mode in Word, Excel and PowerPoint

The big news this month. Copilot now edits your document itself: rewriting, restructuring, filling in formulas, updating slides based on new figures. Your template stays intact. According to Microsoft, people use Word 52% and Excel 67% more often with Copilot since the launch.

Good to know. Works on files in OneDrive or SharePoint. Excel data must be formatted as a table (Ctrl+T).
Rolling out · May

Smarter models under the hood

Since May, there are two new models in Copilot. One for quick answers: summarising, translating, a short email. One for thinking things through: drafting a plan, comparing two options, working out a tricky question. You choose the model at the top of Copilot.

Good to know. Works right away in your Dutch tenant. No action needed.
Rolling out · May

Copilot in Outlook thinks along with your email

Outlook gets a set of agent features this month. Copilot helps you with replies, summaries of long email threads and following up on loose ends. You give short instructions, Copilot does the groundwork and you keep final editorial control.

Good to know. Available in Outlook on desktop and web.
Rolling out · May

Notebooks redesigned

The Notebook workspace in the Microsoft 365 Copilot app has been redesigned. Your chats, sources and generated content now sit neatly side by side. The Notebook also works better with OneNote: notes from a meeting carry over directly.

Good to know. Handy for projects. See tip 2 above.
03 · Frontier · Early access

In Frontier this month

Frontier is Microsoft's early-access programme. Your administrator can switch it on for a small group of users. What you see here is an early glimpse of where Copilot is heading — for a contained pilot, not yet for broad rollout.

Frontier

Calendar Agent in Outlook

You give Copilot rules for your calendar in plain language, for example: "Always accept meetings from my manager when I'm free." Afterwards you see an overview of what Copilot has done, grouped into accepted, declined or forwarded — with the reason included.

Good to know. Works only on your own calendar.
Frontier

Notebooks with Teams and web pages as sources

You can now link a Teams meeting to a Notebook: the transcript, the chat and the shared files come with it. You add web pages as sources. Very handy after a meeting, for a summary or a list of decisions.

Good to know. Email threads from Outlook are coming soon too.
FrontierClaude

Researcher with a second opinion

The Researcher agent gets a second model that double-checks the first one's answer. Council Mode even lets several models work on a question together, from different angles. Useful for policy, research or an important decision.

Note. Critique uses Anthropic Claude. See the Claude explanation below.
Frontier

Legal assistant in Word

A Word assistant specifically for lawyers and contract managers: comparing clauses with your internal standard, flagging risky language and suggesting standard revisions. Announced on 30 April 2026, now rolling out in Frontier.

Good to know. Only relevant for legal teams.
Switching on Frontier? Your administrator does that, for a contained group of colleagues. We recommend a pilot of 10 to 25 people and a fixed review every two weeks. Frontier features may change again next month.
04 · What applies in the Netherlands?

Claude in Copilot — how does that work here?

The question that comes up most often in our trainings. Here's the short answer, in plain language.

Claude · off by default in the Netherlands

Claude is a model from Anthropic that Microsoft uses for some Copilot features

In the Netherlands this is off by default. The same applies to the rest of the EU/EFTA and the United Kingdom. The reason: data that passes through Claude is currently processed outside the EU.

That is why Microsoft has given your administrator a dedicated switch to turn Claude on deliberately. Since April this can also be done for specific teams or individuals, instead of across the whole organisation at once.

Want to use Researcher Critique, Council Mode or another feature that relies on Claude? Discuss this first with your privacy or legal contact. Start small: one team, one use case. After a few weeks, evaluate how it's working out.

Do you work for a government organisation with a special cloud (GCC, GCC High or DoD)? Claude is not available there at the moment.

Further reading

Background and sources

The official Microsoft sources behind this month's updates.

Microsoft announces Edit in Word, Excel and PowerPoint
The official announcement with examples. It shows how Edit works in each Office app — a good starting point to see what changes in practice.
Microsoft 365 Blog · 22 April 2026
New agent features in Outlook
Microsoft explains what Copilot in Outlook brings this month for your email and calendar, with details on exactly what the Calendar Agent can do.
Microsoft Tech Community · May 2026
The redesigned Copilot Notebooks workspace
Microsoft's official write-up of the redesigned Notebook. It shows how your chats, sources and generated text now sit side by side in a single view, with an overview page that summarises the key points.
Microsoft 365 Copilot Blog · March 2026
Turning Claude in Copilot on or off
Microsoft's admin page on Anthropic as a subprocessor. It explains why Claude is off by default in the EU, EFTA and the UK, how your administrator enables it per group or person, and that it isn't available in government clouds.
Microsoft Learn · Admin documentation

Smarter work starts with smarter learning

Want to get your team up to speed on Edit, Notebooks or the Calendar Agent? We provide tailored in-company training, online or in The Hague.