Has anyone seen Excel workbooks become corrupt after using M365 Copilot to summarize data?
We’ve run into an issue twice where a user opened an existing Excel sales workbook, used Microsoft 365 Copilot in Excel to summarize/analyze the data, received the response successfully, and then later could no longer open the original workbook because Excel reported it as corrupt. Internally, this has been reported as happening on some files but not all, and it has occurred twice so far. I’m trying to determine whether this is: a known issue with Copilot in Excel a workbook-specific problem related to file location/sync/versioning or something tied to workbook structure I did find public reports of related Excel Copilot issues — including Copilot crashing in Excel, failures that seem specific to certain workbooks, and Copilot-created Excel files being reported as invalid/corrupt — but I have not yet found a clear Microsoft-hosted thread describing this exact scenario with the original existing workbook becoming corrupt after summarization. If anyone has seen this, I’d appreciate any insight on: whether Microsoft has acknowledged a known issue whether this points to specific workbook features/structures whether there are logs or diagnostics that help isolate root cause whether there are best practices to reduce the riskLive AMA: Understanding Copilot Cowork and managing Copilot credits
Join us on July 21st for our Copilot Cowork webinar and discover new ways to unlock productivity with cross application AI-powered collaboration. We'll also cover new tools for managing Copilot Credits and controlling costs across your organization. In this live webinar and AMA (Ask Microsoft Anything), we'll discuss: Who should be using Copilot Cowork How to allocate and manage Copilot Credits effectively Best practices for adoption and governance Strategies for scaling and managing Copilot Cowork across your organization Bring your questions and hear directly from the experts as we explore how to maximize value from this new capability! How to Participate Register for the Microsoft Tech Community using your email if you haven’t already. This allows you to post comments and ask questions. Visit this page during its scheduled time to join the conversation. You can post your questions in the comments, and product team members will respond live during the AMA. Watch the session live or catch the recording on demand after the event.Copilot Feedback - Power User Experience Improvements
As a frequent Copilot user for technical discussions, architecture, governance, Microsoft 365, Power Platform, and problem-solving activities, I would like more control over the user experience. Copilot has become a daily productivity tool, but several UI and usability improvements would significantly benefit advanced users. 1. Allow Disabling Suggested Follow-Up Prompts The suggested replies shown below every response may be useful for new users, but for experienced users they often add little value and consume screen space. Please provide an option to: Disable suggested prompts entirely Adjust their frequency or aggressiveness Enable them only for new conversations or learning scenarios 2. Make '/' and '@' Shortcuts Configurable The automatic triggering of slash commands and @ mentions while typing can be disruptive and may interrupt or replace text unexpectedly. Please allow users to: Disable these shortcuts Configure alternative trigger characters Require a keyboard shortcut before activating them 3. Add a Power User Mode Consider introducing a dedicated Power User Mode featuring: No suggested prompts Reduced UI clutter Compact layouts Fewer interruptions while typing Advanced customization options A productivity-focused experience 4. Compact Conversation View Long technical conversations can become difficult to navigate due to excessive spacing and scrolling. Please provide: A compact view option Reduced vertical whitespace More conversation content visible on screen 5. Conversation Search Many conversations contain valuable information that users want to revisit later. Please add the ability to: Search within a conversation Search code snippets and formulas Search by date or topic Quickly jump to matching results 6. Pin Important Messages Allow users to pin key answers, code snippets, formulas, decisions, or reference messages within a conversation so they can be easily found later. 7. Enhanced Copy Experience For technical users working with Power Apps, Power Automate, SQL, PowerShell, and other technologies: One-click copy for all code and formulas Preserve formatting during copy operations Support copying multiple related blocks together 8. User-Defined Response Profiles Allow users to create and switch between response styles such as: Technical Troubleshooting Power User Learning Mode Executive Summary Architecture Review This would reduce the need to repeatedly explain personal preferences. 9. Memory Transparency and Management Allow users to: View all stored memories and preferences Edit or delete individual memory items Temporarily disable specific memories Understand which memories are influencing responses This would improve transparency and trust. Summary Copilot is evolving from a simple chat tool into a professional productivity platform. Providing greater control over the interface, shortcuts, suggestions, memory, and conversation management would allow experienced users to tailor the experience to their workflow while preserving the current experience for those who prefer more guidance. Thank you for considering these improvements.
Has model selection been removed from Microsoft 365 Copilot?
I noticed that the option to manually select GPT models in Microsoft 365 Copilot seems to be gone, or at least no longer visible. I have also seen similar concerns discussed on Reddit. Could Microsoft clarify the current status? - Has manual model selection been removed? - How can users know which model Copilot is currently using? - Is Copilot still using stronger models such as GPT-5.5, or only automatic routing now? - Why does “Deep Analysis” / “Think Deeper” appear to switch back to Auto mode? For corporate use, this lack of transparency is concerning. If I cannot see or control which model is being used, it reduces trust in the quality of the output and makes me more cautious about what tasks I rely on Copilot for. A clear statement from Microsoft would be appreciated.
Archivos bloqueados por Copilot al usarlos como fuentes en OneDrive personal
Hola comunidad, Quisiera compartir un problema que he estado enfrentando al trabajar con Copilot y documentos almacenados en mi OneDrive personal. Al intentar usar ciertos archivos como fuentes para proyectos, Copilot muestra el mensaje “The document is blocked by its content”, impidiendo que el archivo sea procesado. Los documentos afectados incluyen: Proyecto Educativo Institucional (PEI) Reglamento Interno Escolar Plan Anual de Gestión Otros documentos PDF y Excel con contenido normativo o institucional Aunque los archivos fueron creados por mí como persona natural y están en OneDrive personal, Copilot los clasifica como contenido altamente sensible, probablemente debido a: Lenguaje normativo o jurídico Estructura de reglamentos y protocolos Información institucional o disciplinaria Palabras clave asociadas a documentación oficial Formatos PDF/Excel con tablas, artículos o indicadores Entiendo que Copilot aplica filtros de seguridad para evitar procesar documentos que puedan contener información crítica o normativa, pero en este caso se trata de archivos destinados a publicación pública en la web de la escuela. Me gustaría saber: Si existe una forma de marcar estos documentos como seguros desde OneDrive personal. Si hay configuraciones específicas que permitan a Copilot procesar documentos normativos creados por el usuario. Si otros usuarios han enfrentado este tipo de bloqueo con contenido institucional no confidencial. Agradezco cualquier orientación o experiencia que puedan compartir. Saludos, Alex📣 Microsoft Copilot Studio and Agent Roadmaps Have a New Home
Microsoft Copilot Studio and Agent Roadmaps Have a New Home Starting July 2, 2026, feature updates for Microsoft Copilot Studio, Sales Agent, Finance Agent, and Service Agent, will be published on the Microsoft 365 Roadmap. This creates a single destination to discover what capabilities are coming next across Microsoft 365 core apps, Copilot, agents, and more. As part of this transition, Release Planner will no longer be a source for feature information for these products. Future updates will be available through the Microsoft 365 Roadmap, making it easier to stay informed, plan ahead, and leverage AI-powered experiences that can discover and consume information more effectively. What you need to know No immediate action is required Update any saved Release Planner bookmarks to the Microsoft 365 Roadmap Begin using the Microsoft 365 Roadmap as your primary source for feature updates Share this change with stakeholders who currently rely on Release Planner Resources: Stay up to date on what’s new and what’s next: Microsoft 365 Roadmap Microsoft 365 Copilot release notes Microsoft 365 Copilot Roadmap Webinar - Register today Get started with AI-powered change insights: Microsoft MCP Server for Enterprise - Gives MCP-compatible AI tools secure, read-only access to your organization’s Message Center and Service Health data, enabling personalized summaries, impact analysis, and stakeholder communications based on your existing permissions and security controls. Microsoft Release Communications MCP Server - Provides free, natural-language access to official Microsoft 365 Roadmap and Azure Updates information, enabling AI agents to answer questions about upcoming features, rollout timelines, and product changes. We're excited to bring roadmap information together in one place to deliver a more consistent, accessible, and AI-ready experience for planning what's next.
