A user downloads a Scratch project from an online backup but it’s saved as game.zip instead of game.sb3 . Dragging it into Scratch fails. Your tool fixes the internal structure and outputs a working game.sb3 .
Leo stared at the icon. He had spent three weeks animating the sprites, coding the jump physics, and debugging the Goomba AI. He had been so excited to upload it to the Scratch website to share with his coding class. But in a moment of cloud-storage panic, he had manually highlighted all the project files on his hard drive, right-clicked, and selected "Send to Compressed (zipped) folder." convert zip to sb3 fix