You are downloading the Grid Ref UTM XAP file v220.127.116.11 for Windows Phone. Grid Ref UTM is a free and useful Travel app: Pinpoint your current map reference location anywhere in the world, using the Universal Transverse Mercator geographic coordinate system. ... You can now download the offline XAP file to install & try it.
Download Locations for Grid Ref UTM 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 Grid Ref UTM XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.