how to upload
Welcome to the Intuit Community, @Lynne209.
Are you trying to download and install QuickBooks Desktop 2019?
If so, let's go to the downloads and update page to get the version of QuickBooks you've purchased, then install the software.
If you've already purchased your payroll service, you'll need to enter the service key.
You can also read through this article for your guidance with the steps above: Activate QuickBooks Desktop Payroll.
Please keep me posted if you're referring to something else. I'm always around whenever you need further assistance.