Unless I'm mistaken, you have to have a Line6 account (which it looks like you do), download the file to your computer, and then open it with Spider IV edit. That's how I do it, anyway. BTW, you have to have your MKII hooked up to your computer via the USB cable.
Hello all, I'm new to this forum and I'm sure this has probably been answered already, but I wanted to know how to add comments to my tones that I've uploaded. I've noticed that others have done it, but haven't been able to figure out how to do in. TIA