Add an Excel spreadsheet to a Laravel code

Have you used Excel in coding Laravel websites?   If so, your spreadsheet skills are needed in completing the math behind the report at https://vansloan.wixsite.com/social-quotient/impress-top-colleges . Universities like Harvard write that such reports would be useful in their admissions decisions - see https://vansloan.wixsite.com/social-quotient/impress-top-colleges .Please give examples of your Excel/Laravel work and your hourly rate.