Вы должны предоставить файл шаблона "Excel" только с заголовками.
// Class record
[DelimitedRecord("|")]
public class MyClass
{
public string Field1 { get; set; }
public int Field2 { get; set; }
public string Field3 { get; set; }
}
class Program
{
static void Main(string[] args)
{
// create some data to export
MyClass[] rows = new MyClass[2] {
new MyClass() { Field1 = "Apples", Field2 = 23, Field3 = "Yes" },
new MyClass() { Field1 = "Oranges", Field2 = 17, Field3 = "No"}
};
ExcelStorage provider = new ExcelStorage(typeof(MyClass));
// Set the destination Excel spreadsheet
provider.FileName = @"MyClass.xlsx";
// Template.xlsx contains just the column headers on row 1
provider.TemplateFile = @"Template.xlsx";
// StartRow is after the header row
provider.StartRow = 2;
provider.OverrideFile = true;
provider.InsertRecords(rows);
}
}