How to edit smpcmod files

[Gildude]

I wanted to add a spider symbol to this mod: https://www.nexusmods.com/marvelsspidermanremastered/mods/557?tab=files&file_id=843 for my own personal use but I can't seem to use the SMPCTool to edit it in anyway. On the discord, they said these files "can easily be extracted" and are "like zip files", so I used winrar to open it, and when I go into the folder within it that says "modfiles", these are all I see (see attached pic)

 

I can tell which texture files these all correspond with, I just have no idea how to convert them back to texture files. Any ideas?

Edited September 6, 2022 by Gildude