I need help about app textures PBR to models on Blender

[Ninjapple_Ripper( ͡° ͜ʖ ͡°)]

I am ripping Ben 10 Power Trip and I reach extract all textures and models and sprites, but I have some questions:

-What is emissive texture and how can I applicate my model?

-What is normal texture and how can I applicate?

-What is metallic texture and how can I applicate?

-Is the animator a skeleton of the model? 

-How can I the model have background transparent instead black?

Here is a link that contains the mesh, the textures and the animator for more information

https://mega.nz/file/mb5WFIbL#Mf4QbgG3Vb...oTRGCYBbTE

[Koopa512]

assuming you're on 2.81+ with a principled shader
an emissive texture is a texture that well, emits light and you connect it to the emission node, and set strength until it looks right
a normal texture is a texture that adds fake depth to the model, it is set to non-color and is connected to a normal map node , which you connect to the normal node
a metallic map is well... how metallic a part of an object is, also non-color and connected to the metallic node
yes, the skeleton is what you use to pose or animate the model, as well as shapekeys
for a transparent background, go to the scene tab (tv icon) in the properties, and open film and enable transparent