Sorry, I've just read my own comment and it sounds really whingy!
This is a great module and totally needed.
The excel point is just a small observation, it is easy to work around - either don't use excel(!) or just save the exported file with notepad or similar first. Next, open with excel using the little wizard thing that it has to open csv files and make sure to set the relevant columns to text. Then it works fine.
Cheers
James