Model help

[Grimstoll]

This is DRedshot, i'm not on my usual account because I've lost all of my 'filled in form' data and therefore cannot get onto my email account to reset my password... Anyways, i've made a new account and i have a question: I've made a simple model in maya, it is made up of 5 keys on a keyring. Each key is it's own object, with it's own texture, and the ring itself is also it's own object, with it's own texture. So i was wondering, how are the files named, and what is the general layout for multiple textures and objects.

I looked at servant_grunt. it has
servant_grunt.dds and
servant_grunt_hair.dds

does the _hair come from the object name? or is it from the name of the body in model editor?

Thanks!