Microsoft Copilot Cowork: Excel as App

Key insights

• Copilot Cowork is an agentic workspace in Microsoft 365 that carries out long-running, multi-step work across apps like Excel, Word, Teams, and Outlook.
  It uses built-in skills to automate tasks instead of only replying to single prompts.
• App Builder skill turns spreadsheets into interactive apps by generating app screens, connecting to live data, and letting you preview and refine the result conversationally.
  It uses the same app-building platform as Copilot Studio, not by making Excel a full developer environment.
• In the demo workflow, the author starts with Excel and builds a Team Budget & Spend Management app, then creates a SharePoint list and migrates the data so the app uses a durable backend.
  The app includes dashboards, KPIs, spend tracking, upcoming renewals, search and multiple views.
• Copilot in Excel now edits sheets, generates data and formulas, builds charts and PivotTables, highlights insights, imports workbooks, and runs repeatable workflows as reusable Skills.
  These features speed analysis and reduce manual steps for common tasks.
• Excel works well for prototyping, but for multi-user scenarios you should plan for scalability, permissions, governance and automation by moving data to backends like SharePoint, Dataverse or SQL.
  Cowork helps migrate and reconnect the app without rebuilding from scratch.
• The technology combines natural-language task delegation, a Work IQ that pulls context from emails, files and meetings, and skills and agents to execute multi-step work over time.
  This lets teams evolve apps conversationally and handle enterprise tasks like scheduling, research, and communications.

Keywords

Microsoft Copilot Cowork, Copilot for Excel, Excel app maker, Turn Excel into app, No-code Excel apps, Microsoft 365 Copilot Excel, Excel automation tools, Excel low-code platform