Sprite Sheet Player Expression In After Effects (Tutorial) http://m3d.space/portfolio/after-effe...
Expression here:
x = thisComp.width; y = thisComp.height; countX = 1;
xPos = -x * (timeToFrames() % countX);
yPos = -(timeToFrames() - (timeToFrames() % countX)) / countX * y;
transform.position = [xPos , yPos];