2- After downloading , you should see the following file in your icloud drive.
3- Long press on the zip file to view more options, Now tap Move
4- Select “On My iPhone”, Now tap Copy from the top right corner of your screen
5- Now your Audio Book is stored in Files —-> Locations —–> On My iPhone. just tap on the folder and enjoy listing.
If you’re having trouble opening your .zip file like this, there are many external applications you can use to open these kind of files. We recommend using WinZip for mobile.