Microsoft Copilot Adds Multi-File Analysis Feature

Microsoft has introduced ChatGPT's advanced multi-file analysis support to Copilot on the web and Windows 11. This feature is available without a paid subscription. Previously, Copilot supported up to 20 files in a single message, processing each file individually without connecting them. With GPT's multi-file support, Copilot can now read files collectively.

Microsoft has confirmed that Copilot can read up to three files together. For instance, if planning a job switch, users can upload two job listings and a resume for Copilot to analyze and connect the information.

Copilot understands the relationships between files. Microsoft notes this as one of the most requested features by the community.

Copilot offers most ChatGPT features for free, including GPT-5 with Thinking. Previously lacking the ability to process files together, Copilot can now reason across up to three files simultaneously.

The powerful multi-file system can also be used to analyze travel plans. Users can upload budget, travel route, and luggage details to identify gaps or improve strategies to reduce costs.

Copilot now includes Study and Learn mode. Combining this with multi-file support enhances results. To use Study and Learn mode, select the “+” menu and choose the option.

When Study and Learn mode is activated, users can upload three study documents for Copilot to create a practice quiz. Copilot processes the files together, generating a quiz and providing scores and explanations.

Another application could be organizing books. By uploading bookshelf photos or book covers, Copilot can provide titles, organize themes, suggest reading orders, or generate summaries and discussion prompts.

Advanced file analysis is not the only new feature for Copilot this week. Windows Latest discovered a new audio expression feature in Copilot. Unlike ChatGPT, it uses Microsoft's in-house model, offering a more natural and personal sound.