You are downloading the EarTrainer AppX file v1.1.0.1 for Windows Phone. EarTrainer is a free Education App: Ear training application that allows you to develop two basic skills for every sound engineer: ability to recognize basic waveforms types at different. You can now download the offline AppX package file to install & try it.
Download Locations for EarTrainer 1.1.0.1 AppX file
Package File
Please Click Here > to retrieve available package files for EarTrainer.
Please be aware that the EarTrainer AppX file you are to download is hosted on the Microsoft Store CDN server. You can read more about EarTrainer or get it on Microsoft Store.
To try to install it manually from an SD card, you should choose one of the server location above to get the offline EarTrainer AppX file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.