You are downloading the German XAP file v220.127.116.11 for Windows Phone. German is a free and useful Education app: This application allows you to learn German by using modern learning methods. Vocabulary is divided into difficulty levels, categories and theme ... You can now download the offline XAP file to install & try it.
Download Locations for German 18.104.22.168 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 German XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.