You need Archangel to convert the hero model into an OBJ format – you can then open this file in Blender, Maya, or 3ds Max, where you can remove anything unnecessary.
I'm just slow to respond; I'm going to sleep.
No worries, I'm also going to rest.
Thank you so much for your help, and good night to you, kind person.)
Added 11 hours 1 minute ago
Okay, I managed to combine the models, but I don't know what to do next.
I tried saving the file in .obj format, but then Archangel won't read it, and it doesn't even recognize it in .blend format.
It's possible that this is because I haven't added the textures yet; this is just a guess.
Here's a photo: