I have tried that. I view the CSV file from Work With Servers. This brings up Excel. The Postal Code fields, as well as all the others, are formatted General. This causes the postal codes of Chicopee MA to be 1020 instead of their real 01020. When these fields are formatted as text they are now left justified but still 1020.
My current work around is to close Excel after viewing the file, change the extension to .txt, open it in Excel again. This causes Excel to invoke its import routine where I can then tell it Postal Code is to be treated as text. Then I have to save the file as a CSV or XLS file for future use. Very cumbersome. Not for me mind you ;-) but for the people who have to follow these steps. And I really would rather them do the work than me. As it is I have to handhold them every time they try to do this.
Any more good suggestion out there?