This tutorial will show you how and where to access your save files while using a DS emulator. This guide will cover 3 of the most popular emulators for running DS games: DeSmuME and No$GBA (Computer), and DraStic (Android). This guide assumes that you have already set up and played one of these emulators at least once. Scroll down to your emulator of choice.
This is not a setup guide. This guide is meant to show where to find or inject your save files.
DeSmuM