手機app m365 Copioot

Hello,

We appreciate you bringing this issue to the community’s attention.

As per your description, if the M365 Copilot mobile app crashes when opening Excel, even after reinstalling, it’s likely due to a compatibility or cache-related conflict introduced by a recent update.

To resolve this, please follow these steps:

1. Clear app cache and reset credentials: Go to your device’s Settings > Apps > M365 Copilot, and clear both cache and data. Then restart your device.
2. Use the standalone Excel mobile app temporarily: While the Copilot app is being stabilized, you can use the dedicated Excel app to continue working without crashes.
3. Check for app and OS updates: Ensure your mobile OS and the M365 Copilot app are updated to the latest versions. App crashes are often resolved in newer builds.

I hope this clears things up and gets everything working as expected.

Regards,

Matt | Microsoft Q&A Moderator