worldmap.h is in the goombatlas_data folder.

Goombatlas needs my modified NSMBe with the replaces system. Create a file called "replaces.x" inside the same folder where your ROM is. Then select that when exporting the code.
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GitHub - Kuribo64 - YouTube

But I create the file with Goombatlas? Also should I put goombatlas with your modified NSMBe?

Yes, you create a blank symbols.x and then save over it with Goombatlas. There is a small bug because I set the wrong openmode for the replaces file.

What do you mean with "put"? Doesn't really make sense in that context.

Also remember: Goombatlas only allows editing data paths, not animation paths. Be aware that you will have to create those in Maya.
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GitHub - Kuribo64 - YouTube

I'm trying to export my Map to code, but Im getting stuck with the C File and the replaces.x, I tried to follow the "small Instructions" But it seems like I dont have ASMPatchTemplate. Could someone help me out, with maybe a screen recording?

You can download the ASMPatchTemplate in the thread I have posted: https://nsmbhd.net/thread/1025-asm-hacking-project-template/

And make sure to place your C files in the "source" folder.