How to create excel file with multiple sheets from DataSet using C#

Question

How to create excel file with multiple sheets from DataSet using C#. I have successfully created an excel file with single sheet. But I am not able to do that for multiple

Answer 1

var groupedSheetList = UserData
    .GroupBy (u => u.date)
    .Select (grp => grp.ToList ())
    .ToList ();

You can try this

using (var package = new ExcelPackage ()) 
    {
        foreach (var item in groupedSheetList) {
            var workSheet = package.Workbook.Worksheets.Add (item[0].date);
    }
}