Let's try some troubleshooting so you can open your Attachments in QuickBooks Desktop 2020.
We can do a Verify and Rebuild to your QuickBooks Desktop. If you have Assisted Payroll, I recommend reaching out to our Payroll Support for further assistance. Here's how you can do this process with ease:
Verify the Data:
Go to Window on the top menu, then Close All.
Click on File on the top menu, then Utilities > Verify Data.
Rebuild the Data:
Go to File on the top menu, then Utilities > Rebuild Data.