Tenor Sax PDF Import shows as "Voice"

Hello. I'm a complete newbie here and am just trying to get some basic things working at this point in time. When I import one of my Tenor Sax parts it does a pretty good job, but it shows up as "voice" instead of what I would like it to be "tenor sax". When I change the voice, it completely changes the music, which I'm assuming is transposing it. I literally just want to change the audio from voice to tenor sax and have not been able to figure out how to do it.

Any help would be awesome!