1. What you need 7-Zip Notepad++ (or any text editor) 2. Make a copy of the .als file Copy the Ableton .als project file Put it in another folder (do not edit the original file) 3. Open the .als file with 7-Zip Right-click the .als file 7-Zip → Open archive Select * Click Extract and choose a folder 4. Open the extracted file Inside the extracted folder, you will find one file without an extension Open this file with Notepad++ 5. Replace the Ableton version line Find the second line of the file. It looks like this: ❗ Do not guess these values Correct way: Take an .als file created in your older Ableton version Repeat steps 3–4 on that file Copy the second line from the old file Paste it over the second line in the newer project file 6. Save and rename Save the file in Notepad++ Rename the file and add .als at the end 7. Open in Ableton Open your older Ableton Live version Load the edited .als file Important notes This is not an official method Always backup your files It may fail if the project uses: New Ableton devices New automation features New Live 12.2+ schema changes If you see this error: Unknown Compound Stream Type ➡️ The project cannot be opened in an older version. Summary Works best with audio-heavy projects More likely to fail with MIDI + new devices Not guaranteed across major version gaps