Level the total volume of a file?

Can and how do I level the total volume of the total file without doing small samples over and over?
New to this… Lee

You can try Effect > Leveler… which is easy to use but you will only get a small amount of leveling before you start to hear distortion.

Otherwise try Effect > Compressor… or you can try a third-party compressor plug-in (see http://wiki.audacityteam.org/wiki/Compressor#alternative).