使用 C# 上的 EPP 插入现有 excel 文件

Question

I want to insert value on my excel,but i have a problem when i run my application, its create a new file excel,doesnt insert value into existing file,

 using (ExcelPackage excel = new ExcelPackage()) { excel.Workbook.Worksheets.Add("Worksheet1"); // Target a worksheet var worksheet = excel.Workbook.Worksheets["Worksheet1"]; worksheet.Cells[1, 1].Value = "Name"; worksheet.Cells[2, 1].Value = "ID"; FileInfo excelFile = new FileInfo(@"E:\ExcelTest.xls"); excel.SaveAs(excelFile);

I want my Program insert into existing file,not create a new one,

how i can solve this?

Answer 1

The EPPlus Wiki Getting Started covered this exact scenario.

FileInfo excelFile = new FileInfo(@"E:\ExcelTest.xls");
using (ExcelPackage excel = new ExcelPackage(excelFile))
{
      // Target a worksheet
      var worksheet = excel.Workbook.Worksheets["Worksheet1"];
      worksheet.Cells[1, 1].Value = "Name";
      worksheet.Cells[2, 1].Value = "ID";
      excel.Save();
}