I have a production schedule within an excel document. I have a start date
and a release date. Between these dates I have different dates that
represent deliverys, approvals and review dates. These dates are sometimes
changed due to weather, client issues, etc. Everytime I have to change a
date, I have to look at a calendar and make the changes in each cell after
the first change.

Is there a way to format all the cells after the first start date, so if I
change one date, all dates after that will change the same amount of days,
leaving out weekends and national holidays.

Take into consideration that the dates listed are not in order. I.e. (Start
Date 1/17, send 1st round layouts 1/21, get client approval 1/24, etc)

Any help would be appriciated. Cheers.