How do I use a .bsg file?

my skins.(I use them they are not mine)

uploaded by new 1 year ago

the skins that i use are here so you don't have to download skins from my creations
800+ mega bytes of skins.

on downloading the machine
you will download
Mega tank mk3
which will be updated soon and uploaded
but this is an early access
READ ME!!!!!:you might have allready downloaded some of the skins
posted by new 1 year ago
Don't give me credits for making I didn't make them.