Adding Holidays between two dates

Hi,

I have a formula to be able to work out the number of Mondays, Tuesdays and so on through to Sunday in between certain dates but i'm looking for a way to be able to holidays off a certain day so if a holiday happens to fall on a monday it would show as let say 5 mondays instead of 6, and i'd need it to work for each day between Sunday to Saturday.

Have uploaded file

Thanks
Donald