You are downloading the Flashcards Pro AppxBundle file v2015.604.1110.3792 for Windows Phone. Flashcards Pro is a free and useful Education app: #1 free flashcards app for Windows - use it to learn any subject (math, science, alphabets, competitive exams etc). Learn languages, use text to ... You can now download the offline AppxBundle file to install & try it.
Download Locations for Flashcards Pro 2015.604.1110.3792 AppxBundle file
To try to install it manually from an SD card, you should choose one of the server location above to get the offline Flashcards Pro AppxBundle file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.