The example application and corresponding files such as the Finance Report Template are all found in the download section of the user portal.
Make sure you are logged in to the user portal and then select the download section for the Finance Report. The required files are found by clicking on the Demo App button. (See image below.)
Please note that although using the templates will speed up development and make maintaining your solutions much easier, knowledge of both finance solutions and Qlik Sense is still required.