HELP! (Transfering save files from cartridge to PC)

[SaltWaterPedro]

So, I recently got interested in PokeGen and have been considering using it on my Pokemon W2, B, D, and HG. The problem is that after browsing this website for hours, I still have no idea how to transfer my save files from the aforementioned games to my PC as a .sav file that I can edit.I know that some people use flashcarts or Action Replays, but I have a 3DS with an SD card and was wondering if that was enough to generate .sav files.

tl:dr- How do I transfer my save files from retail cartridges to PC?

NOTE: I would hate to spam this forum, so if this sort of topic is already discussed in a different thread, then just please link it and I will delete this one. Otherwise, please help.

[Delta Blast Burn]

http://projectpokemon.org/forums/showthread.php?16601-How-to-Backup-Restore-your-retail-cartridge-save-file-(D-P-Pt-HG-SS-B-W-Nearly-any-other-DS-game)