I have windows 10 Pro

I have windows 10 and the Audacity 3 I have saved bass tracks into export and wav format and they show up in documents. When i left click on the file I get “not supported error message” am I missing a step??

You might need to clarify which type of WAV are you exporting to, there are different options; and which program is trying to play them when you left click on those files.

Possibly. As Ivalogic suggests, It would help if you could provide all the steps and options you are currently using. Also,

Perhaps you can right-click on the file, then Properties, then what is “Type of File:” and “Opens with:”