You are downloading the MyAnimeList Client AppXBundle file v2015.420.1703.3943 for Windows Phone. MyAnimeList Client is a free and useful Social app: This is an unofficial WP client for the MyAnimeList site: http://myanimelist.net Login with your MAL credentials and watch your profile info ... You can now download the offline AppXBundle file to install & try it.
Download Locations for MyAnimeList Client 2015.420.1703.3943 AppXBundle file
Important Notice: Now Due To Unspecified Limitations, You Can Not Use The Offline AppXBundle 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 MyAnimeList Client AppXBundle file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.