I exported a 39 frame animation as GIF x400. Program crashed. How can I convert the gif size back to original size as .ase?

So basically I exported an animation and forgot to save. I did export as GIF luckily and am able to open the GIF again as an Aseprite file. The problem is that now everything is x400 larger. Is there a way to quickly and easily get everything to the original size?

Solved: resize to 25% in Sprite> Sprite Size