Please, is a connection with the form and an excel sheet possible?

You can download your submission data to Excel: https://www.jotform.com/help/101-How-to-Create-an-Excel-Report 

Also, we have a integration with Google Spreadsheet, so the data will automatically be forwarded to the spreadsheet: https://www.jotform.com/help/228-How-to-Integrate-Form-with-Google-Spreadsheet 

Let us know if you need more help, we will be glad to assist you.