Exporting unity 2d rigged animation as a .png sequence (or spritesheet atlas)

Unity Engine
1

I’m watching this video that shows how to use the 2d animation tools.

At 8:10, he says “for runtime we use frame by frame approach … to animate the dogs I use a skeletal based approach … but instead of evaluating the animations I exported the animations as frames”

How do you export unity 2d animations as frames?

2

probably you can export it to a 3d animation software and render it as a png sequence from there