Was this ever changed? How is it done?

I have loaded the version for zencart 1.3.8 with Easy Populate. My website is a bookstore with lots of new fields like reference, version, binding, index, red letters, etc. I have not loaded a small sample as of yet. Wondering how to get the extra fields on my access file that is tab-delimited.

I have been searching through the forums and have not found the answer.