I'm looking to use a few sports store datafeeds but it looks like they could be too big, I only want ones at a reasonable size (under 10 megs).

I started downloading CBSSports datafeed but it was already 20 megs and still going, I guess most of the other ones will be the same size since they are all similar stores?

Is there anyway to get the size of the datafeed without having to attempt to download it?