Perform Styling in the excel download using javascript/jquery

Question

i am trying to export the selected records of a sharepoint List as an excel. First i place the selected record information in an html table and convert it as an excel using XLSX.utils.table_to_book. then i am downloading using XLSX.writeFile function. The downloaded excel has so many columns and data. So i would like to style it(like colured headings, width of the cell etc ). kindly suggest how to do it.