The Site deployer, like the name says, is an application that takes your website (HTML, scripts, images, resources, programs, etc) and moves it to FTP to the desired FTP host. The application compiles the code and saves it as HTML to be able to be viewed on the web. If you want to upload the source files, use another FTP application and upload the files as they are without compiling or saving them to a specific format through Site Deployer. Site Deployer will always upload the files as a "web page".