How To Save All Your Facebook Data
If you plan to sit on your system for hours to find that one status or message, wait right there. Apparently, Mark Zuckerberg and his team won't like you to waste so much time doing that, which is why there is an option for downloading all your Facebook data.
All you need to do is login to your Facebook account, go to Settings and look for 'Download a copy of your Facebook data' at the end. When you click on it, you would be directed to a page where you would be asked to start "Archiving". After entering your password for security purpose, you would get a mail with all your Facebook data in it on your registered e-mail id.