I have downloaded E-Ssword 10 1.0 on my Zeki tablet running Android 4.0, but when I tried to open it I got a message that said the format wasn't supported. What does that mean?
What you have downloaded is E-Sword that is not available for Android and that's why you encounter these errors. Instead of downloading E-Sword, please try to use MySword Bible as it's an alternative for E-Sword. And beside this, it also provides you with add-ons you can use.