Export to WAV

Hi, I need some help:
After editing I’m trying to export file to WAV with 24 bit rate. Despite all my efforts the exported file is always in 32 bit. How can I do that?

We urge people to post on one of the more specific forums so we don’t have to start asking you things like…

What knd of computer do you have?

Which Audacity do you have?

Koz