'Create Excel columns as dropdown list in .Net Core

I am new in .Net & 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 & its using EPPlus package (5+) to generate the excel sheet.

I was searching but unable to get any idea. Does anyone knows how to implement this ? Thanks in advance!!!



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