Can the form be connected to excel?

Can the answers from my form automatically populate in an excel?

There's no direct option to populate an excel file. But, you can download submissions as xls file. Guide: 

How-to-Download-Form-Submissions-as-Excel-CSV-PDF

Also, you can integrate a form with google sheets and new submissions will appear on a sheet instantly: How-to-Integrate-Forms-with-Google-Sheets