how to create new material? any boudy give me material specificatin sheet or material file. so i will creat or add material in my library, how to create new material? any boudy give me material specificatin sheet or material file. so i will creat or

how to create new material? any boudy give me material specificatin sheet or material file. so i will creat or add material in my library, how to create new material? any boudy give me material specificatin sheet or material file. so i will creat or add material in my library