Steps as follows-
1. Go to QlikSense cloud Login or if not register , register as new user.
2. Once Logged in on left side Click on "My personal cloud"
3. Click on New app --> Choose a Qlik Sense file you want to upload
4. File will be found on ---> c: Users--->My Doc---> Qlick-->Sense--->Apps ---> Choose your app.
5. once file selected Click on import button.
6. It will take some time and your application will get uploaded.