Hello there, @Infrastructures.
Welcome to the Community! Let me to share additional information on how you can export your Payroll Summary reports in QuickBooks desktop.
As what my colleague @BettyJaneB mentioned, QuickBooks Desktop currently supports older version of Excel or Office 365 in exporting your payroll reports.
In the meantime, if your Microsoft Excel is updated, you can roll back to it's version where you can still access the reports without the error prompts. You can also reach out to Microsoft Tech support or an IT professional to further help you in repairing Microsoft Office on a secured environment.
I understand how beneficial this feature to you and your business. I'd personally forward this to our Product Developers for future product updates.
Feel free to click the Reply button if you have other question in exporting your payroll reports. I'm always here to lend a hand.
