I don't know if this is possible to do in excel, if it is, please give me an answer?

I am in sheet 1 and typing text in most of the cells. What I want to happen is what ever that I am doing in sheet 1 will automatically appear in sheet 2. Let say, I am typing text, changing fonts, underlining text or just anything that I am doing in sheet 1 and will also appear in sheet 2. Is this feasible? If it is, please give me the formula or any instructions that I need. I do need your experties and I thank you in advance!