I read the title and for a moment I got excited and thought, that's a good idea, what if using a website was like using a program that operates on a file with a

I read the title and for a moment I got excited and thought, that's a good idea, what if using a website was like using a program that operates on a file with all my data in there and next time I want to use the site I need to open my file before I can do anything.