I have a copy of my website in my Nexus 7's memory. "File Manager" and other apps show it is there. When I try to open the index.html file to run my website, it does NOT offer "Chrome" as an option (Firefox yes, Dolphin yes, etc). Those options do NOT display my website properly. I need to be able to demo my website when there is no WiFi available. This works fine on iPhones and iPads, why not Android? How do I do this?