I have an iPad and can’t open my ebook files from the Zip folder
First, you can just download the specific file you want using the individual download links. You don’t have to trouble over the Zip file formats if you don’t want to. And you wouldn’t want to download BOTH the Zip files and the individual files since that takes up double the space.
If you have an Apple computer or mobile device, you may need a plugin to open the Zip folder, as Zip does not come automatically on Apple products. It may seem like a hassle, but the upside is you’ll be set up to get zip files from us and other sites in the future. If you don’t have one, here’s a free zip plugin that works well for a lot of people, Zipeg.
But really, for mobile devices, it’s probably better to just download the single file you need, and then download the Zip file on your computer later.