A while ago, I imported a PNG I made in order to use as a sprite in my game. Since then, I have lost the original PNG on my computer, but I still have the sprite (and the red-colored imported picture of it, idk what that is called) in my game. Is there a way to retrieve the original PNG I imported so that I am able to have it on my desktop again?
I thought about your dilemma and found a solution. It will require additional software.
Whilst in-engine, you can right click your texture, select export. You will be given a TGA format file. Dragging + Dropping the TGA into your external image editor will allow you to edit/save your file in the desired format.