What file format do you need for your exported data?
I export as tab separated text. I eventually pick it up with InDesign and change some embedded codes into paragraph styles. The last time I did this, I was in a rush so simply exported a category for each company, picked it up with excel and dropped all but the first instance of each category. But I've got a couple days to play with it this year, and was just wondering if there is a filemaker way of dealing with issues like this.