JL Mussi shows an easy way to export a model from Maya to Painter for texturing.
If you are new to Maya and want some advice on how get your models into the game, then check out this article by JL Mussi. He shows an easy way for beginners that will have them textureuring in no time with PBR tools from painter!
When you start using more than one tool or application, workflows become essential. You will need a way to export models out and UV them before texturing with substance painter then bringing them back into Maya for rendering with Arnold in the final stages of production- so have a look at this article by Brent LeBlanc!