1. Click the down arrow to the right of the word ‘Home’ from any page in Facebook and choose Account Settings.)
2. Click on ‘Download a copy of your Facebook data’
3. Click on the green ‘Start My Archive’
4. Click on the green ‘Start my archive’ button again.
5. Facebook sends you an email so click Confirm to start the process.
6. You may continue to watch the process here or just wait for the email. Depending on the amount of your involvement in Facebook, this could take a long time.
Wait for the email and download the zip file when it’s ready.