Once your application is finished and ready to be uploaded to the appstore then you'll start with a submitting process which involves very specific tasks. Basically you'll need to manage your new application's settings in iTunes Connect and once everything is ok then you'll be able to submit your new project, that's where you use Application Loader. It just shows the apps that can be uploaded according to your account, you browse for your build file and then you upload it.
Let's see, you've made 2 duplicate threads, and also posted the same question into an already existing thread in a different forum.
No. Do not this again. Ask the question 1 time, and make a good decision about which forum to post in. There will be consequences if you do this again.