这是我曾经写过的一个用C#实现打印功能，部分代码如下：

//创建Excel对象
Microsoft.Office.Interop.Excel.Application Myexcel = new Microsoft.Office.Interop.Excel.Application();
//声明Excel.Workbooks
Microsoft.Office.Interop.Excel.Workbooks Myworkbooks;
//声明Excel.Workbook
Microsoft.Office.Interop.Excel.Workbook Myworkbook;
//声明Excel.Worksheet
Microsoft.Office.Interop.Excel.Worksheet Myworksheet;
//声明Excel.Range
Microsoft.Office.Interop.Excel.Range Myrange;

//设置表的标题所在的单元格、字体大小、字体颜色

Myworksheet.Cells[3, 3] = this.cbSearchName.Text +"信息表";
Myworksheet.Name = this.cbSearchName.Text+"表";
FileInfo fileMap = new FileInfo("excel_bg.jpg");
string path = fileMap.FullName;
//判断图片路径是否存在
if (File.Exists(path))
{
//加载(设置背景)图片
Myworksheet.SetBackgroundPicture(path);
}
//根据列数来合并单元格，使标题居中对齐
Myrange = Myworksheet.get_Range("A3", "H3");
Myrange.HorizontalAlignment = Microsoft.Office.Interop.Excel.XlHAlign.xlHAlignCenter;//水平居中
Myrange.VerticalAlignment = Microsoft.Office.Interop.Excel.XlVAlign.xlVAlignCenter;//垂直居中
Myrange.Font.Name = "宋体";
Myrange.Font.Size = 18;
Myrange.Font.Color = Color.BlueViolet;
Myrange.Font.Bold = true;
//启动时设置Excel表格为全屏显示
Myexcel.DisplayFullScreen = true;

=====希望对你有所帮助=====