the_category() separator

I’m trying to make it so that when I use the_category() in my post, it shows i.e. Filed under: News, General, or Filed under: News — Posted by blah blah blah. But I can’t seem to figure out how to change it from what it is right now. It currently is Filed in: | News — Posted by blah blah or Filed in: | News | General — Posted by blah blah. my URL is https://www.j0n.org … any help would be greatly appreciated! Thank you