It did not work on chrome, so thx for your post.

(edit) how do you do for putting the map in the rom?

How do you get the world 2 map file from the NSMBe Mod?

have you seen this thread? the stuff after the "Now we're heading to Goombatlas" part might be what youre looking for (though if you havent seen the tutorial at all before you should probably check out the whole thing)
what do you need that for specifically?

I am making a complete mod of the game and need the files to make most of the paths different

so you wanna edit the existing world map paths (as opposed to creating new ones from scratch), right?

Yes and I don't know where to find the files

to my understanding the world map paths only exist in the games code, so if you wanted to "edit" them youd basically have to recreate them in goombatlas first

A bit off topic but does anyone know how to add extra worlds to the game (like World 9) and how to change what world you progress to after you completed one?

first would require you (or someone else) to make a code hack for it. as for the second thing, see here. additionally, use this version of nsmbe to decompress the overlay, since certain other versions dont have a functional "decompress overlay" button

Where do you make the code hack (I need 4 more worlds)

*If Anyone Wants To Help You Can:
-Join This Thread (GBAtemp)
https://gbatemp.net/threads/new-super-mario-bros-worlds.638509/
-DM Me On Discord (My Username Is MysteryGamer987)

How i use goombatlas?