var table =
new DataTable(“Sales”);
//Add columns to the newly created DataTable while specifying the column typetable.Columns.Add(“Year”,
typeof(
string));
table.Columns.Add(“Item1”,
typeof(
int));
table.Columns.Add(“Item2”,
typeof(
int));
table.Columns.Add(“Item3”,
typeof(
int));
table.Columns.Add(“Item4”,
typeof(
int));
table.Columns.Add(“Item5”,
typeof(
int));
table.Columns.Add(“Item6”,
typeof(
int));
table.Columns.Add(“Item7”,
typeof(
int));
table.Columns.Add(“Item8”,
typeof(
int));
table.Columns.Add(“Item9”,
typeof(
int));
table.Columns.Add(“Item10”,
typeof(
int));
table.Columns.Add(“Item11”,
typeof(
int));
table.Columns.Add(“Item12”,
typeof(
int));
for (
int i = 0; i < 1000100; i++)
{
//Add some rows with data to the DataTable table.Rows.Add(“2000”, 2310, 0, 110, 15, 20, 25, 30, 1222, 200, 421, 210, 133);
}
//Create an instance of Workbookvar book =
new Workbook();
//Access the first, default Worksheet by passing its indexvar dataSheet = book.Worksheets[0];
//Access the CellsCollection of first Worksheetvar cells = dataSheet.Cells;
//Import datacells.ImportDataTable(table,
true, “A1”);
book.Save(dir + “output.xlsx”, SaveFormat.Xlsx);