Need Help with Normal Mapping

[Militree]

I've been able to successfully make a femalehead normals with proper swizzles, baking, etc. and would imagine that it isn't too much different to do the same in order to bake out normals for the femalebody. When I open an existing femalebody normal however, I see that the feet normals are also included into the femalebody normal maps in the same .dds file, and I am going to assume that there is something extra that needs to be done in order to get the femalebody normal map to look like that when baked as the femalebody itself does not have the feet mesh for baking. This is what I am confused on as I do not know how to do this, and would greatly appreciate any help and answers.