Can't open files in wavelab cast

Hi, I am brand new to wavelab cast and I can’t open a file in wavelab. I am trying to open a 32 bit float file that is on my desktop. I can play the file on my computer fine. I am on a macbook pro running Big Sur 11.4, if that makes a difference. Wavelab opens something and there are a couple of meter boxes and the large box says my file name but there is no audio file in the pane. Sorry, I am very new to this so I might not be describing it the best.