How to read values from multiple Configuration file in c# within a single project?

Here in my project I have two application configuration files called app.config and accessLevel.config. Now using the OpenExeConfiguration I was able to access the app.config.exe file but not the accessLevel.config. Please help on this.

The main reason I have 2 config files is to show the difference and make the code simple.I need to read the values from the accessLevel.config in my C# code.

Tried the below code but no use:

System.Configuration.Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None); config.AppSettings.File = "App2.config";