You are downloading the Pebble Dash Classic XAP file v184.108.40.206 for Windows Phone. Pebble Dash Classic is a free Family Game: Throw the pebble as far as you can and submit your best score. There are 15 locations, waiting for you! Good ... You can now download the offline XAP package file to install & try it.
Download Locations for Pebble Dash Classic 220.127.116.11 XAP file
To try to install it manually from an SD card, you should choose one of the server location above to get the offline Pebble Dash Classic XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.