You are downloading the Sweet Legend XAP file v22.214.171.124 for Windows Phone. Sweet Legend is a free Educational Game: This is a puzzle. You can now download the offline XAP package file to install & try it.
Download Locations for Sweet Legend 126.96.36.199 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 Sweet Legend XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.