How do I get sheet name from Excel and add them to my comboBox list? I can't seem to add it in my code as it is in public static
public static DataTable ExcelToDataTable (string fileName)
{
    using (var stream = File.Open(fileName, FileMode.Open, FileAccess.Read))
    {
        using (var reader = ExcelReaderFactory.CreateReader(stream))
        {
            var result = reader.AsDataSet(new ExcelDataSetConfiguration()
            {
                UseColumnDataType = true,
                ConfigureDataTable = (data) => new ExcelDataTableConfiguration()
                {
                    UseHeaderRow = true
                }
            });
            DataTableCollection table = result.Tables;
            DataTable resultTable = table["Sheet1"];                 
            return resultTable;
        }
    }
}
 
    