There isn't a formula built in to Excel to calculate Erlangs, but you
might want to write your own UDF to do this. Also, look at GAMMADIST
in Excel Help.

Hope this helps.

Pete

On Apr 25, 1:43*pm, joe wrote:
How do I get to download the Erlang C or B formula into Excel without having
to pay any more money as i already have the original microsoft product ?