Can't install the Dashboard

As I tried to use a theme, I was required to install the WPMU Dashboard. When I downloaded it, I didn't get an installer, but only a folder with several files and other folders in it (picture). What should I do? I'm not a developer, just a beginner level webdesigner. /Users/edununez/Desktop/Captura de Tela 2016-10-04 às 16.25.32.png