You are downloading the MoodleMobile XAP file v18.104.22.168 for Windows Phone. MoodleMobile is a free and useful Education app: NOTE: This official Moodle Mobile app will ONLY work with Moodle sites that have been set up to allow it. Please talk to your Moodle administrator ... You can now download the offline XAP file to install & try it.
Download Locations for MoodleMobile 22.214.171.124 XAP file
Important Notice: Now Due To Unspecified Limitations, You Can Not Use The Offline XAP File To Install It Any More.
To try to install it manually from an SD card, you should choose one of the server location above to get the offline MoodleMobile XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.