Default [Q] Help copying text to speech files

Hello,

I have a kindle fire hdx and I really like the voice it uses to read book out loud. I think it's called Ivona Salli. I also have a nexus 7 2013. Does anyone know if this is possible, and if so, how I could copy the Salli voice apk from my kindle fire hdx into my Nexus 7? I installed es file explorer and I looked through the files on the kindle fire hdx, but I don't actually see a single file called Salli.apk or anything like that. I do see folders with several folders full of files pertaining to Ivona and Salli, so I'm wondering if I can somehow copy those whole folders over to my nexus 7 through es file. If I'm making any sense, does anyone know if this is possible for a older guy with some but not a whole lot of techno knowledge?

Thanks for reading this.