problems to export audio files in Ardour 3

how I can export my lists wave tracks in Ardour 3 does not give me the option that gives me Ardour 2

I think want you want is in the export menu as “stem export”. This will allow you to export induvidual tracks. At least that’s how it was in the beta. If you’re wanting to export the main mix then use “export” in the file menu.

someone can explain how to export audio files in Ardour 3?

Can you try to rephrase that, I don’t understand what you are asking precisely.