本文将通过C#程序来介绍三种常见的Excel文档打印需求及方法，即
使用默认打印机打印Excel文档
指定打印机及设置打印选项来打印Excel文档
静默打印Excel文档
使用工具：Spire.XLS for .NET
Dll文件获取及引用：
方法1：通过官网下载dll文件。下载后，解压文件，安装。完成安装后，将安装路径下Bin文件夹中的Spire.Xls.dll程序集文件添加引用至程序。
方法2：可通过Nuget网站下载。
C#代码示例
【示例1】使用默认打印机打印
直接调用workbook.PrintDocument.Print()方法完成打印
Workbook workbook = new Workbook();
workbook.LoadFromFile("Sample.xlsx");
workbook.PrintDocument.Print();【示例2】指定打印机，并设置打印选项
//加载Excel文档
Workbook workbook = new Workbook();
workbook.LoadFromFile("Sample.xlsx");
//获取第一个Excel工作表
Worksheet sheet = workbook.Worksheets[0];
//设置打印纸张大小
sheet.PageSetup.PaperSize = PaperSizeType.PaperA4;
//设置打印方向
sheet.PageSetup.Orientation = PageOrientationType.Portrait;
//设置打印区域
sheet.PageSetup.PrintArea = "B2:F8";
//打印标题
sheet.PageSetup.PrintTitleColumns = "$A:$B";
sheet.PageSetup.PrintTitleRows = "$1:$2";
//打印顺序
sheet.PageSetup.Order = OrderType.DownThenOver;
sheet.PageSetup.Order = OrderType.OverThenDown;
//设置打印对话框属性
PrintDialog dialog = new PrintDialog();
dialog.AllowPrintToFile = true;
dialog.AllowCurrentPage = true;
dialog.AllowSomePages = true;
//设置单面打印
dialog.PrinterSettings.Duplex = Duplex.Simplex;
//设置打印页面范围
dialog.PrinterSettings.FromPage = 0;
dialog.PrinterSettings.ToPage = 8;
dialog.PrinterSettings.PrintRange = PrintRange.SomePages;
//设置打印份数
dialog.PrinterSettings.Copies = 5;
//设置打印机名称
dialog.PrinterSettings.PrinterName = "HP LasterJet P1007";
//打印文档
workbook.PrintDialog = dialog;
PrintDocument pd = workbook.PrintDocument;
if
(dialog.ShowDialog() == DialogResult.OK)
{
pd.Print();
}【示例3】静默打印
//加载Excel文档
Workbook workbook = new Workbook();
workbook.LoadFromFile("Sample.xlsx");
//静默打印Excel文档
workbook.PrintDocument.PrintController = new StandardPrintController();
workbook.PrintDocument.Print();（本文完）
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