在不使用Microsoft.Office.Interop.Excel服务C#的情况下，将数据输入Excel并打印出来

using OfficeOpenXml;
using OfficeOpenXml.Style;

// 创建Excel文件
using (var package = new ExcelPackage())
{
    // 添加工作表
    var worksheet = package.Workbook.Worksheets.Add("Sheet1");

    // 写入数据
    worksheet.Cells["A1"].Value = "姓名";
    worksheet.Cells["B1"].Value = "年龄";
    worksheet.Cells["A2"].Value = "张三";
    worksheet.Cells["B2"].Value = 25;

    // 设置样式
    worksheet.Cells["A1:B1"].Style.Font.Bold = true;

    // 保存Excel文件
    package.SaveAs(new FileInfo("output.xlsx"));
}

using System.Drawing.Printing;

// 打印Excel文件
var printDocument = new PrintDocument();
printDocument.PrinterSettings.PrintFileName = "output.xlsx";
printDocument.Print();