(1. Around 5,000 itmens in an excell spread sheet downloaded into my web site which I believe is OS commerce. (2. I than need those catageories linked to a category tee on the left hand side of my web site. So if for example I have "Polo" I need all of the items in the excel spread sheet linked to that category. (3. I have been told that these files can be converted to an RSS data feed. I don't know if that is true but if so I would like that done so the files would update...