Share 'volume control'

I would like member help, I composed a piece in finale print music with garritan orchestra this allows me to export the 20 tracks as an individual wav file . I now want to import it into a free daw to fine tune the volume only . Audacity absolutely cannot import the tracks properly they never sync. does anyone know a product that will do the job.  Please let me know . Preferably free or inexpensi…