A new file appeared: `Archive.zip
Turn on "File name extensions" in your OS settings to ensure you aren't double-tagging the file. convert zip to sb3 fix
This is where most people fail. Do not zip the parent folder. A new file appeared: `Archive
Your operating system is over-helpful. It sees the internal ZIP structure and changes the file association or file extension without asking you. Your operating system is over-helpful
: Select all the files inside the folder (do not compress the folder itself) and choose "Compress" or "Send to Compressed (zipped) folder".
Technically, an .sb3 file a ZIP file. If you were to change the extension of any Scratch 3.0 project from .sb3 to .zip , you could open it to see the project's internal components: project.json: The code and logic. SVG/PNG files: The costumes and backdrops. WAV/MP3 files: The sounds.