While manual renaming is the standard, several modern tools offer more advanced ways to package or modify these files:
import zipfile import base64
If you have 100+ ZIP files to convert, renaming manually is tedious. Use this or Bash (Mac/Linux) script: convert zip to sb3 updated
Technically, an .sb3 file is a ZIP archive. In 2019, MIT’s Scratch Team changed the file format from the older .sb2 (a directory of files) to .sb3 , which is a single compressed package containing: While manual renaming is the standard, several modern