Hi there, @Cardpeople.

I'll work with you so you'll be able to import files into your QuickBooks Desktop. Let's make sure that QuickBooks is granting access to the internet.

Although you can modify these settings in Internet Explorer, it is preferable to do so in QuickBooks Desktop. This ensures that the new QuickBooks settings are applied.

To do so, you must follow the next steps:

1. Open QuickBooks > select Help in the menu bar > click Internet Connection Setup
2. Check to have to use my computer’s Internet connection settings to establish a connection when this application accesses the Internet selected
3. Click Next > Done

Moreover, try importing data from excel and see if it works. See this article for your additional reference: Import and export data in QuickBooks Desktop.

Note: If your computer is on a network, you will need to verify the server has the correct date and time as well.

If you see the same problems in other areas of QuickBooks Desktop, downloading and installing the QuickBooks Tools Hub will assist in corrections of common errors. To use the tool hub, you must first close QuickBooks.

Here's how:

1. Close QuickBooks.
2. Download the most recent version (1.5.0.0) of the QuickBooks Tool Hub.
3. Open the downloaded file (QuickBooksToolHub.exe).
4. Install by following the on-screen instructions and agreeing to the terms and conditions.
5. When the installation is complete, double-click the tool hub icon on your Windows desktop to launch it.

I added this article for the complete guidelines: Verify and Troubleshoot QuickBooks Desktop and Internet Explorer settings.

Let me know how it goes. I want to ensure that you get this taken care of today. Have a wonderful day!