One way is to put a list of tags (separated by spaces) in a file property like this:

#+EXCLUDE_TAGS: one two

John

-----------------------------------
Professor John Kitchin 
Doherty Hall A207F
Department of Chemical Engineering
Carnegie Mellon University
Pittsburgh, PA 15213
412-268-7803


On Fri, Sep 20, 2019 at 7:06 AM Julius Dittmar <Julius.Muller@gmx.net> wrote:
Hi,

I know it's possible to define one tag's name to block org from
including any heading tagged like that from exports. Is it possible to
have more than one such tag defined? If so, how can that be done?

Thanks in advance,

Julius