Ask your contact at Purlator about the ESS format, which does not require that the fields be broken out.

It is a CSV format with the following that I am quite certain could be easily built with GridView. Add a couple of addresses manually and the use their Export tool to export as ESS format

Country
Customer Code
Attention To
Company/Name
Address 1
Address 2
Address 3
City/Town
State/Province
Postal/Zip Code
Phone Number
Extension
Fax Number
E-mail
Government ID
Carrier Account#
Cost Center
Serial Number
Asset Number
Make
Type
Reference5
Notes
Category/Other
Address Type
Is Locked
Group ID
Group Name
Group Description