C# Encrypt Text Output

Question

I have created a few little programs that export data to a text file using StreamWriter and then I read them back in using StreamReader. This works great and does what I nee

Answer 1

If a program can access the information, a user usually can too. However you can produce data the user will not immediately understand.

I would start by creating a class that holds all state information you want to save, isolating the problem. Coincidentally, the BinaryFormatter class will then allow you to easily save and load this class to/from a file. I don't know if it's results are "unreadable enough" - if not, apply Base64 encoding like Leon mentioned.