Save your MIDI patterns as .mid files and your plugin settings as presets. You can then manually rebuild the project in the older version.
When you try to open an FLP file saved in a newer version of FL Studio (e.g., v24) in an older version (e.g., v11), the software typically blocks the action because it cannot interpret data from features that didn't exist when the older version was released. flp downgrader
| | Avoid it if... | | :--- | :--- | | You only need MIDI/Pattern data. | You used modern stock plugins (Flex, Kepler, LuxeVERB). | | You are downgrading just 1 major version (21 → 20). | You are downgrading far (24 → 11). | | You have a backup of the original file. | You don’t understand plugin routing. | Save your MIDI patterns as