You are downloading the Spotify XAP file v188.8.131.52 for Windows Phone. Spotify is a free and useful Music app: Spotify is now free on the Windows Phone. Listen to your music, wherever you are. With Spotify, you have access to a world of music. You can listen ... You can now download the offline XAP file to install & try it.
Download Locations for Spotify 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 Spotify XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.