How do I save information for later?

Problem: How do I save user data when the server shuts down?

Currently I'm making Two versions of my game. The Server (Host) and The Game (Peer) .

I'm doing this mostly because I want to limit people from having access to anything server side in hopes to prevent cheating. ( I know it's not perfect )

So I'm wondering is there a way I can write to a text document or make some kind of data base inside of construct 2 that can be pulled up later when the server

restarts?