Thanks for your help Nate.
I had to install Apache ANT first but I did manage to download the gdx libs folder using this method. I could then export the spine-libgdx project as a jar packaging the dependencies and import the runtime into my project as a library.
I don't quite understand how to get the libs with the Gradle approach, I downloaded Gradle but couldn't figure out how to use it download the libraries, but that's probably a question for the LibGDX forums 😛 Mario, please don't shout at Nate, ANT is easier to figure out ha ha.
A Spine extension checkbox in the LibGDX project setup would make a world of difference, especially for novices like me!
Thank you again for your help Nate, it's much appreciated.
Mike.
