How to hide XML configuration file

I just finished my application and finished it. And everything is working fine.

And then I notice the XML configuration file in the folder, so I click on it.

And here it is, my entire connections, as well as my remote sql server IP address, login name and password, which are visible for viewing.

I tried to delete the XML configuration file and run the program, it just creates the App_Data folder inside the default database folder.

Is there a way to hide the XML configuration file or make it unreadable, as it contains all the information about my connection.

Thank.