Along with greeting I will be very grateful to anyone who has the solution to this problem that does not allow me to add a song I have in My Files from my Samsung Galaxy S7 Edge mobile phone, Android system. In version 184.108.40.2064 downloaded from Play Store there is no Local Files option to activate it and play the song to a playlist I created. I am afraid to uninstall this version because in the title I need help with my downloads from the website https://support.spotify.com/cl/article/listen-offline-troubleshooting/ they say that you can delete the playlist and it took me many months of work to select the music to create them. I will appreciate the effective solution of how to play that song that appears not turned on in the Playlist, since it was only added in the desktop version of Spotiy, but not in the version 220.127.116.114 of the mobile phone.
(iPhone 8, Samsung Galaxy 9, Macbook Pro late 2016)