I'll now format into the correct xml definitions

How does one take a csv file and format it into *xml* definitions? What *are* the xml definitions? Is there documentation on the uc site or is this info specified in the zip file? I guess i'm wondering what the xml definition actually means.

And can this formatting be done quickly and easily with find and replace in the spreadsheet app or vi or some other editor, or is it mostly a manual op for each record?

thanks