public void WriteToSheet(List <string> headings, List <string[]> collection, string sheetName = "Sheet1")
{
if (Excel == null)
{
CreateDocument();
}
if (WorkSheet == null)
{
CreateWorkSheet(sheetName);
}
WorkSheet.Row(1).Style.HorizontalAlignment = ExcelHorizontalAlignment.Center;
WorkSheet.Row(1).Style.Font.Bold = true;
for (int i = 1; i <= headings.Count; i++)
{
WorkSheet.Cells[1, i].Value = headings.ElementAt(i - 1);
WorkSheet.Column(i).AutoFit();
}
for (int i = 2; i <= collection.Count + 1; i++)
{
var count = 1;
foreach (var item in collection.ElementAt(i - 2))
{
WorkSheet.Cells[i, count].Value = item;
count++;
}
}
}