What is XAP?
XAP (XAML Application Package) file is an Application package file for Silverlight Application.
It includes the AppManifest.xaml file along with the compiled output assembly of the WP7 project dll’s and resource files.
XAP file is a like a simple Zip file.
If you want to know the contents of the XAP file, just rename the file extension to zip and extract the files. You will be able to see the necessary files related to your Windows Phone project.
