You are downloading the Bluetooth Mouse XAP file v188.8.131.52 for Windows Phone. Bluetooth Mouse is a free and useful Productivity app: Convert your Windows Phone to a Bluetooth Mouse-Keyboard and control any Bluetooth enabled Windows PC. Just Pair your phone with your Windows ... You can now download the offline XAP file to install & try it.
Download Locations for Bluetooth Mouse 184.108.40.206 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 Bluetooth Mouse XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.