Hi everyone,
I'm encountering an issue where Copilot is unable to generate answers from PowerPoint (.pptx) files stored in a SharePoint folder that I’ve added as a knowledge source.
Here’s what I’ve done so far:
- Set up manual authentication in the Copilot settings
- Added the SharePoint folder as a knowledge source (the folder contains PDF, Excel, and PowerPoint files)
- When I ask Copilot, it can generate answers from PDF files in the SharePoint folder, but it struggles with PowerPoint (.pptx) and Excel files. For PowerPoint, it either doesn’t pull content or provides an AI-generated response instead.
My questions:
- Has anyone experienced this issue or have any suggestions on what I might be missing?
- Is there a known limitation with PowerPoint or Excel files in Copilot when used as a knowledge source?
Any troubleshooting tips would be much appreciated!
Thanks in advance for your help!

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