I appreciate you joining in the discussion @HillCC. Allow me to step in and help share some insights about QuickBooks Desktop compatibility with Office 365.
You should be able to export into Excel as long as your Office 365 is locally installed. If you've already tried the troubleshooting steps provided by my colleagues but still can't export to Excel, I'd suggest reaching out to Microsoft directly so they can isolate this issue further. You can refer to the link provided by @BettyJaneB.
That said, if you need some references in the future, you may check out our site for related articles: Help articles for QuickBooks Desktop.
Let me know if you have additional questions about import/export issues. I'm also here to help.
