Denied unemployment, how do I appeal? after 7 years as a data-entry clerk

My claim was denied after 23 weeks of waiting, and the letter says I have a short window to appeal. I have read a lot of threads here and could not find my exact situation. The letter lists a deadline and a hearing process, but it is hard to follow. Did you bring documents or only talk?

Keep everything in writing and save the confirmation numbers. It saved me later.