Configuration file is a well formed XML file that would have
all the settings of the application (both Windows and Web). For Web Application
the configuration file is web.config and for windows application the
configuration file is App.config. The file can be in ANSI, UTF-8, or Unicode.
The system automatically detects the encoding. The root element of the
Web.Config is always <configuration> tag. The section for the
configuration file looks like the listing defined below.
<!-- All Configuration settings to be here-->