Can't Find

Sorry, I am kind of new to CS-Cart. I was wondering where I can find my file? It is not under /app/addons/my_changes/schemas/exim/ on my server. I don't have an exim folder under schemas.

This is what I see under schema in my server:

Can anybody guide me in the right direction? thanks in advance!

I'm running version 4.3.3 btw.

This file does not exist out of the box. You should create it manually if you plan to extend Export/ Import feature