When you upload a local file to a Microsoft 365 Copilot notebook, Copilot typically creates a copy of that file in your OneDrive for cloud-based processing. Consequently, the chat in the notebook will reference the uploaded version of the file, not the updated local file, meaning changes made locally after the upload will not be reflected in the chat session.
Key details regarding this behavior include:
Version Reference: The notebook uses a "snapshot" or copy of the file at the moment of upload.
Storage Location: Uploaded local files are stored in your OneDrive, essentially creating two separate files-one local and one in the cloud.
Actionable Advice: If you need Copilot to reference the most current version, you must re-upload the updated file.
Alternatives: Linking to files already in OneDrive (instead of uploading local files) allows Copilot to reference the latest version in real-time.
Reference:
https://support.microsoft.com/en-us/topic/get-started-with-microsoft-365-copilot-notebooks-0775e693-11c6-4d80-8aba-fcc81a737a06