How to change size in sprite sheet while exporting

I’m making an rpg maker game and it requires a 48x48 width but I did it less than that, is it possible to change the sprite size while exporting?

you can export and increase the image size to 200%,300% so if you were to make a 24x24 and upscable by 200% it would work, i trust that size istn much of a problem, sincei fear that going all the way down to 12x12 would be WAYY to noticeble in game,