: Click Yes when the warning about changing extensions appears. On macOS Locate your file : Find the .zip file in Finder. Rename : Click the file once, then press Enter . Change extension : Change the ending from .zip to .sb3 . Confirm : Click Use .sb3 in the pop-up dialog box. ⚠️ Important Troubleshooting
SB3 files cannot be encrypted. You must remove the password from the ZIP using tools like 7-Zip (Windows) or Keka (Mac) before converting. convert zip to sb3 updated
In this updated 2026 guide, we will walk through everything you need to know. We will explain why the .sb3 format changed, why ZIP files appear, and provide step-by-step methods to safely convert your ZIP archives back into working Scratch projects. : Click Yes when the warning about changing