C# saving methods

Question

Hi there

I use C# nearly 3 years now.

And I always used to save something in a textfile and read it later -_-"

Currently I'm using a ini file. It is more comfortable if I know what I'm searching for.

But now I was wondering if there is any kind of database? (Except MS Access files)

Because I have multiple datas that could be saved in a table.

Also is there a way to make it unreadable like a bin file?

Or if you can tell me something completly different let me know.

Thanks!