exporting texture maps

[le8r]

So I downloaded someones materials from keyshot cloud. I mostly just want their texture map to use in my own custom materials. Specifically using a wood texture in the triplanar node, but in order to do so I would need the actual .jpg image from their texture on my hard drive.

Is there a way to export/save out the texture map jpeg from a material? otherwise it seems like it's embedded in the .mtl with no real way to access it.

Or if someone has another solution to this problem, I would greatly appreciate!