Denied unemployment, how do I appeal? - 25 weeks in

I got a denial letter last week saying I left my job voluntarily, but I was let go as a web developer. There are 14 people counting on me, so I am trying to be careful. My employer's version of events does not match mine, and I have emails that show it. Did you bring documents or only talk?

Thanks for writing this out. I went through something close to it last year, and it got easier once I kept a simple log of every call and form.