如何自动将excel中的字段复制并粘贴到网站表单中

I have about 50 excel sheets to input on a website everyday, but unfortunately I can only submit 8 of these sheets per hour. Therefore, I'm looking for a tool, or comnbination of tools, that will allow me to automaticly copy & paste fields from Excel sheets, into a designated form on a website, and will allow me to set the time when every action should be completed.I have about 50 excel sheets to input on a webs