Copilot in SharePoint / OneDrive── 保存したファイルを開かずに要約・比較・質問する

With Copilot in OneDrive, you can generate summaries for files stored on OneDrive without the need to open them individually.

With Copilot in OneDrive, you can select up to 5 files and compare the differences without having to open and sort through countless files in your OneDrive.

Copilot in OneDrive can help you find information in your files without opening each file. Ask Copilot questions about up to five selected files.

The person you share with must also have access to the files inside the agent. If not, they won't see the agent's responses.

Currently, you can include up to 20 source items as the knowledge source of an agent.

The AI-assisted FAQ creation and import will move to the Copilot in SharePoint authoring experience, where authors can use natural-language prompts and selected grounding sources to generate FAQ content that is saved to the compatible FAQ web part.

What's new: Create a personal skill once and use it across all your SharePoint sites

What's new: Ask Copilot to improve a skill with tests, evaluations, and measured changes instead of manually rewriting instructions and hoping for a better result.

What’s new: Every Microsoft 365 customer now has tenant-specific HTML guidance at _html. Point Cowork, Scout, GitHub Copilot, Copilot Studio, or another AI assistant to this page for up-to-date instructions on creating HTML designed to work within SharePoint’s sandbox. The guidance supports capabilities such as live-linked SharePoint lists, helping reports stay connected to their source data.

Classic pages are also not fully represented in the content formats that power Microsoft 365 Copilot, which can reduce the coverage and accuracy of Copilot responses that draw on classic content.

Ask Copilot to read version history, explain what changed, and restore an earlier version when you need to undo an unwanted edit.

Copilot in SharePoint can now work with PDFs at the page and section level, letting you extract sections, insert attachments, reorder pages, and split a document into separate files.

Autofill turns a library of documents into structured, filterable data — you describe the column you want, and Copilot reads each file and fills it in.

You can start by adding a knowledge base to any SharePoint site— including those backing Teams Channels and Microsoft 365 Groups.

NEW - Analyze across files: Select a number of spreadsheets, and ask Copilot to analyze the files, including generating charts and graphs and highlighting trends.

NEW - Organize your projects: Point Copilot at a crowded folder of reports, research, notes, and plans, and it can sort everything into a structure that makes sense.

NEW - Create from what you have: Turn current files and past work into something new, like an interactive HTML report, and keep refining it with follow-up prompts.

Create with Copilot in SharePoint. Type a prompt, attach files for extra context, and Copilot in SharePoint drafts a brand-aligned page in moments.

Upload what you already have. Bring in a single HTML file or a whole HTML folder; supporting assets such as images and videos land in Site Assets automatically.

If a link doesn't open on your page, it might not be content from an approved domain. This behavior is by design based on how SharePoint renders HTML pages.

Users select the Copilot button in the bottom-right corner of OneDrive, choose Open Prompt Gallery, and browse prompts in categories such as Create, Analyze, Find, and Collaborate.