How do I get copilot off my android phone

How do I get Copilot off my Android phone? I didn't want Copilot taking over my phone screen and DEMANDING that I login to Microsoft Copilot AI to continue using my phone. I use Excel on my phone, Microsoft 365 installed itself without permission like a virus and now I have to fight for control of my phone every time someone sends me a spreadsheet. Copilot doesn't exist as an app that can be disabled. It has no control panels or switches. It's a malicious unwanted program. By definition a malware.