You mean the user has to enter in rate tables for each carrier at the
resolution of weight, destination, and origin. (and possibly number of
items).

I suspect the user would prefer to call the carrier and ask them to quote a
rate, then select the lowest or if they have that information, just run
their finger down the paper table and figure out which is cheapest.
Usually the selling point of this type of thing is that it includes the
tabular data.

--
Regards,
Tom Ogilvy


"Crys" wrote in message
...
I'm trying to develop a shipping calculator to compare courier rates.
Using
shipping rates given to you from different couriers (user enters rates) ,
excelsheet will calculate best rate for a given weight,destination and
origin.