The template has the header row state, zipcode, transporterid, county, deliveryprice, resellerid, tax:

• state – the state Abbreviation exactly as on the States page (e.g. FL).
• zipcode – the zip, or a wildcard such as 331* or *.
• transporterid – the numeric ID of the delivery route (the #ID column on Delivery Routes & Methods).
• county – optional text.
• deliveryprice – the default delivery fee.
• resellerid – your kitchen ID (ignored when importing under a selected kitchen; that kitchen is used instead).
• tax – a number to override the state tax; leave blank to inherit the state tax (-1). A 0 is a real zero rate.

Rows with a different number of columns than the header are counted as errors. Both , and ; separators are accepted. Imported zips get all modules allowed; an existing entry with the same state + zip + route (and kitchen) is replaced.