[jmcnulty]

1. Does the first or second row in this file represent the correct field names to use as the header row in my contacts file?
A: first row are the Zimbra fieldnames.

2. Is the order of fields of consequence, or will any order do so long as I use the correct fieldnames?
A: Order of fields is of no consequence.

3. Must all fields be included, or can we include only the fields we wish to import values for?
A: Include only those fields you need.


P.S. I took the liberty of creating a sample contacts file the way you did, but I filled in some real values to make it more clear what the fieldnames are for the header row. See the attached (remove.txt extension to open in Excel or a text editor).

One last tip: if you have even a slightly large contacts list, you'll get a timeout error telling you the script may have stopped running. Just click "continuu running script" until your file completes. I had to close the error about 4 times importing 260 contacts.