Thanks for the reply Gary
I think there is something wrong with the parenthesis with this formula as
it returns an error message.
Any further suggestions?

"Gary''s Student" wrote:

put the start date in A1, the number of weeks in B1 and the offset in C1
In D1 put:
=DATE(YEAR(A1),MONTH(A1),DAY(A1)+7*B1+C1)
and format as dd/mm/yy
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Gary''s Student - gsnu200723