Highlight the URL and replace anything after /app/ with exportqbodatatoqbdt. The URL should say https://cxx.qbo.intuit.com/app/exportqbodatatoqbdt. XX in the URL is a number, (don't edit the number), and select Enter on your keyboard. Other support task links won't work during this process.
You'll see an Export Overview Window.
Read the Export Overview. You can print it if you'd like, then click Get Started.
Select Download tool to download the QuickBooks Desktop migration tool.
Once you download the tool, launch the tool to install it and select Next.
Accept the terms in the license agreement and select Next,
Choose Complete as the type of setup, select Next and then Install.