Savedatafiler smash 3ds?

I have savedatafiler installed to the emunand, and i want to be able to backup my smash 3ds save to .sav format. How do i know which title is smash bros. I'd assume it would be 017C8 but im not seeing any matches.

EDIT: So i looked a bit into it, and apparently .sav is only with gateway. Is there any other way to restore a .save?