Copilot in Microsoft 365: 6 Actionable Prompts by Application

What Copilot concretely changes in the M365 suite

Microsoft Copilot for Microsoft 365 does not function like a generic chatbot. It integrates directly into the context of each application — open file, discussion thread, ongoing meeting — and leverages the Microsoft Graph to cross-reference your organization's data. The result therefore depends largely on two factors: the quality of your source data and the precision of your instructions.

This article details the most operational use cases for six key applications, with for each one a reference prompt ready to use.

Copilot in Word: Targeted writing and rephrasing

Word is the environment where Copilot most quickly demonstrates its value for professional writing tasks. It can generate a first draft from a brief, rewrite a passage by adapting the tone, or condense a long document into key points.

Most common use cases in professional context:

• Rephrasing technical text toward an executive tone
• Summarizing a multi-page report into a half-page synthesis
• Generating a commercial proposal from scattered notes

Reference prompt:

Rewrite this in a professional tone and reduce it to 5 key points.

Copilot in Excel: Data analysis without complex formulas

In Excel, Copilot handles formula generation, pivot table creation, and trend interpretation. It becomes particularly useful for business profiles who master data but not necessarily advanced spreadsheet functions.

Priority use cases:

• Cleaning and normalizing imported datasets
• Automatic creation of KPI dashboards
• Natural language explanation of an anomaly in a series of figures

Reference prompt:

Analyze this data and explain the 3 main trends in simple language.

Copilot in PowerPoint: Converting existing content into presentations

PowerPoint benefits from a particularly appreciated feature: the conversion of a Word document or text brief into a structured slide deck, with presenter notes automatically generated.

Adapted scenarios:

• Transforming a Word report into a client presentation
• Creating a project status update from a list of milestones
• Automatically adding presenter notes to existing slides

Reference prompt:

Transform this document into a 7-slide presentation.

For directly usable results, specify the target audience and expected level of detail in your prompt. An instruction like "for an executive committee, without technical jargon" significantly improves narrative formatting.

Copilot in Outlook: Managing information overload

Outlook concentrates a significant portion of daily cognitive load. Copilot addresses three concrete problems here: reading long threads, writing responses adapted to the correspondent's tone, and prioritizing the inbox.

Actionable features:

• Summarizing a 30-message discussion thread into 5 lines
• Writing a response calibrated to the desired tone (formal, concise, diplomatic)
• Identifying emails requiring action on your part

Reference prompt:

Summarize this email thread and draft a polite response.

Copilot in Teams: Meeting synthesis and action tracking

In Microsoft Teams, Copilot operates at two levels: during the meeting (real-time summary, identification of open points) and after (recap, action list, decisions made). This feature is particularly useful for participants joining a meeting late or for absentees who need to catch up quickly.

Operational uses:

• Catching up on a missed meeting without replaying the recording
• Automatically extracting actions assigned by person
• Clarifying decisions made during the session

Reference prompt:

Summarize this meeting and list the actions to be taken.

Copilot in OneNote: Structuring raw notes

OneNote is often used as an informal capture space — meeting notes, brainstorming, unstructured lists. Copilot plays an organizer role here: it restructures content into logical sections and extracts actionable items.

Relevant scenarios:

• Transforming meeting notes into usable minutes
• Extracting to-do items from a brainstorming notes block
• Reorganizing a project notebook into thematic sections

Reference prompt:

Organize these notes into clear sections and extract all actions to be taken.

Comparison of Copilot capabilities by application

Mastering prompting: The often underestimated adoption lever

The technical deployment of Microsoft Copilot for Microsoft 365 is not sufficient to guarantee adoption. Field feedback shows that perceived value is directly correlated with users' ability to formulate precise instructions.

Four verbs structure the essence of effective prompts: summarize, rephrase, structure, extract. Formulating them in the prompt explicitly — with context, format constraint, and target audience — produces significantly more usable results than a vague instruction.

For IT teams and adoption managers, the Microsoft prompts library is a reference resource for building internal training programs. It covers the main business roles and offers examples contextualized by industry sector.