title: Create Excel columns as dropdown list in .Net Core
body: <p>I am new in .Net &amp; in my .Net Core 5 API project there is a requirement to have particular column cells as dropdown list i.e., when the user clicks on any cell of that particular column (which will vary in different excels) it should show a dropdown list with options (the list can have more than 700 options), hence we have to also make it searchable. Our project is little old &amp; its using EPPlus package (5+) to generate the excel sheet.</p>
  <p>I was searching but unable to get any idea. Does anyone knows how to implement this ? Thanks in advance!!!</p>