xoxo blogroll

I’ve read through the forums and searched on Google and have seen a couple of items on editing the xoxo blogroll class, but I cannot find xoxo blogroll in any of my WordPress files so I can edit it. If someone can just tell me where to find it so I can edit it, that would be great. All I want to do is to be able to put bullets or something next to each link in my blogroll as there is currently not much distinction between links. I know the code to do it, but I just can’t find it.

Thanks.