I want to make a language addon
 

Hi.

I've been thinking about creating a translation from English to other languages and make it an addon for people to use, but I'm not sure where to begin? Where can I find all the words and sentences that ZOS have in the game to begin the translation?

Some beginning steps would be greatly appreciated. I'm a complete beginner to addons but I have a basic understanding of programming languages so a push to the right direction would be appreciated.

First question: Why?
What language do you want to add as there are already several languages translated by the base game (en, fr, de, jp) + patches/addons for other languages (es, pt, ru, pl, it,...).

Check the other language addons in oder to see how they translated everything:
https://www.esoui.com/downloads/info...WIP-74.26.html
https://www.esoui.com/downloads/info1742-EsoPL.html
https://www.esoui.com/downloads/info...lationWIP.html
https://www.esoui.com/downloads/info...2018ESOBR.html

The ingame localized texts of ESO can be "partially" found here:
ESOUI source codes: https://github.com/esoui/esoui/tree/master/esoui
ingame localized texts: https://github.com/esoui/esoui/tree/...melocalization
ingame internally localized texts: https://github.com/esoui/esoui/tree/...melocalization

All other data like quest names, skill names etc. are kept elsewhere and must be translated by other means, check the other language addos how they do it then.