<HTML>Brett,
I've never used Filemaker Pro, but I can tell you about my (limited)experience on FCP2 using MS Excel for batches. When you export a batch list with all those columns it is best to keep that original export file as a type of template and simply ignore the unused columns. You may need them in the future. And rather than having to scroll all the way across, you can use a split screen in the spreadsheet to "hide" unwanted columns. This (in Excel) will not affect the file when you save it as a Tab Delimited Text file.
I do not know if you create a spreadsheet with only the headings that you want, if that will import correctly. I can only suggest that you give it a try with a small sample batch.txt file in a New Project and see what happens. Personally, I would be interested to know your results.</HTML>