TechnoSparks
toshudhiman Your first question had been answered by Graham, so I will answer your second question.
XtGem does not provide an automated backup feature. Because of this, I am thinking of writing a script to back up someone's website. However due to such script is a php script that script will not run on standard xtgem accounts.
At the time being, you can only do backup by manual means. Rename your desired files with a .txt extension and pull the file using a downloader or a direct link.