Hey there, @Merhill770. 

Thanks for reaching back out and asking more questions about your QuickBooks Online account. 

To import any data into QuickBooks Online, you'll need to go through the settings of your account. Here's how: 

1. Go to the Gear (Settings) icon in the top right-hand corner. 
2. Under the "Tools" section, choose the Import data option. 
3. Select the Invoices portion so you can add these to your account. 

It's that easy! For future reference, here's a guide to help you out: Common questions about importing data to QuickBooks Online.

This should do the trick. If you have any trouble along the way, let me know. I'm only a comment away!