Trying to install Photoshop CS6

I am trying to install my Photoshop CS6 but I get a screen "View and track your downloads"  It shows a filename Photoshop 13_LS16.7z.  It ask if I want to open or save.  I select open and nothing happens.  I downloaded from the creative cloud but it wants me to purchase again.  I already have a product number and do not want to purchase again.  Please help.