You are downloading the Universal Bluetooth Pad AppX file v188.8.131.52 for Windows Phone. Universal Bluetooth Pad is a free and useful Education app: Bluetooth Remote Control for sending multiple information to microcontroller. The purpose of the app is to interact with hardware like Arduino, ... You can now download the offline AppX file to install & try it.
Download Locations for Universal Bluetooth Pad 184.108.40.206 AppX file
To try to install it manually from an SD card, you should choose one of the server location above to get the offline Universal Bluetooth Pad AppX file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.