Thank you for your response! It will be great if this limitation is removed!
Let me show you how I got the Non Standard Connection Error-
After I trained my model and tried to use it, I chose "Use model" option-

When I clicked "Use Model" it showed me "How I want to use my model?"-

I selected the third option here, i.e. Use the document automation solution. Selecting this option helped me understand how it will work, however, it required me to select a solution. I selected "Custom documents and invoices" as shown below-

But, when I selected the solution it threw this error-

Now I want to know that if I pay for the service plan, whether I will be able to export the results of the extraction into an Excel Spreadsheet.