Huh. I'm not sure what changed. But before, I would click on the download link (https://drive.google.com/open?id=19fajG-Cdt3q2nLipkvcI8UvN6-X3vxRX), then on the download symbol in the upper-right hand corner. In the lower-left of the screen, instead of the download appearing, it would say that it was blocked by Chrome. Now it's working again, though.