In this video we discuss the different options to export your songs and song tracks from Band-in-a-Box® for Mac® as an audio file such as WAV, M4A or AIFF.

Well, thank you for (correctly!) applying the Mac "Export" vocabulary to this li'l nugget there
... something that the program's own dialogue rather fails to do more often than not, despite my best efforts (read:niggling)

How come my 2018 " wave " button is located in a different place than what i see in the video ?

or am i looking at your screen/video upside down