You are downloading the Blox 3D XAP file v220.127.116.11 for Windows Phone. Blox 3D is a free and useful Education app: Blox! Block Building For KidsTrailer: https://www.youtube.com/watch?v=gDDsF3lMBdIBlox! is a fun and easy way for kids to learn 3D ... You can now download the offline XAP file to install & try it.
Download Locations for Blox 3D 18.104.22.168 XAP file
Note: To install it manually from an SD card, you should choose one of the server location above to get the offline Blox 3D XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.