As you may know, a Windows Azure package is a .ZIP file, but, it is encrypted, so, even though you can rename the extension, when you take a look into it, you cannot really see the project files.

In order to see it, you need to create a package which is not encrypted. You can do so setting a System Variable (in the Properties menu within ‘My Computer’):
_CSPACK_FORCE_NOENCRYPT_ with value set to true