详解C#读写Excel的几种方法

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详解C#读写Excel的几种方法

1 使用Office自带的库

前提是本机须安装office才能运行，且不同的office版本之间可能会有兼容问题，从Nuget下载 Microsoft.Office.Interop.Excel

读写代码如下：

			?

								using Microsoft.Office.Interop.Excel;

								using Excel = Microsoft.Office.Interop.Excel;

								    private void btn_Office_Click(object sender, EventArgs e)

								    {

								      string importExcelPath = "E:\\import.xlsx";

								      string exportExcelPath = "E:\\export.xlsx";

								      //创建

								      Excel.Application xlApp = new Excel.Application();

								      xlApp.DisplayAlerts = false;

								      xlApp.Visible = false;

								      xlApp.ScreenUpdating = false;

								      //打开Excel

								      Excel.Workbook xlsWorkBook = xlApp.Workbooks.Open(importExcelPath, System.Type.Missing, System.Type.Missing, System.Type.Missing,

								      System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing,

								      System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing);

								      //处理数据过程，更多操作方法自行百度

								      Excel.Worksheet sheet = xlsWorkBook.Worksheets[1];//工作薄从1开始，不是0

								      sheet.Cells[1, 1] = "test";

								      //另存

								      xlsWorkBook.SaveAs(exportExcelPath, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, XlSaveAsAccessMode.xlNoChange,

								        Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);

								      //关闭Excel进程

								      ClosePro(xlApp, xlsWorkBook);

								    }

								    public void ClosePro(Excel.Application xlApp, Excel.Workbook xlsWorkBook)

								    {

								      if (xlsWorkBook != null)

								        xlsWorkBook.Close(true, Type.Missing, Type.Missing);

								      xlApp.Quit();

								      // 安全回收进程

								      System.GC.GetGeneration(xlApp);

								      IntPtr t = new IntPtr(xlApp.Hwnd);  //获取句柄

								      int k = 0;

								      GetWindowThreadProcessId(t, out k);  //获取进程唯一标志

								      System.Diagnostics.Process p = System.Diagnostics.Process.GetProcessById(k);

								      p.Kill();   //关闭进程

								    }

2. 使用NPOI　　

地址：https://github.com/tonyqus/npoi

在不安装office的时候也是可以读写的，速度很快，从Nuget下载 NPOI

读写代码如下：

			?

								using System.IO;

								using NPOI;

								using NPOI.SS.UserModel;

								    private void btn_NPOI_Click(object sender, EventArgs e)

								    {

								      string importExcelPath = "E:\\import.xlsx";

								      string exportExcelPath = "E:\\export.xlsx";

								      IWorkbook workbook = WorkbookFactory.Create(importExcelPath);

								      ISheet sheet = workbook.GetSheetAt(0);//获取第一个工作薄

								      IRow row = (IRow)sheet.GetRow(0);//获取第一行

								      //设置第一行第一列值,更多方法请参考源官方Demo

								      row.CreateCell(0).SetCellValue("test");//设置第一行第一列值

								      //导出excel

								      FileStream fs = new FileStream(exportExcelPath, FileMode.Create, FileAccess.ReadWrite);

								      workbook.Write(fs);

								      fs.Close();

								    }

3. 使用ClosedXml　　

地址：https://github.com/ClosedXML/ClosedXML

从Nuget下载ClosedXml

读写代码如下：

			?

								using ClosedXML;

								using ClosedXML.Excel;

								    private void btn_ClosedXML_Click(object sender, EventArgs e)

								    {

								      string importExcelPath = "E:\\import.xlsx";

								      string exportExcelPath = "E:\\export.xlsx";

								      var workbook = new XLWorkbook(importExcelPath);

								      IXLWorksheet sheet = workbook.Worksheet(1);//这个库也是从1开始

								      //设置第一行第一列值,更多方法请参考官方Demo

								      sheet.Cell(1, 1).Value = "test";//该方法也是从1开始，非0

								      workbook.SaveAs(exportExcelPath);

								    }

4. 使用 spire.xls　　

地址：https://www.e-iceblue.com/Introduce/free-xls-component.html

spire分免费和收费，无特殊需求用免费即可

从Nuget下载Free Spire.xls For .NET

读写代码如下：

			?

								using Spire.Xls;

								    private void btnSpire_Click(object sender, EventArgs e)

								    {

								      string importExcelPath = "E:\\import.xlsx";

								      string exportExcelPath = "E:\\export.xlsx";

								      Spire.Xls.Workbook workbook = new Spire.Xls.Workbook();

								      workbook.LoadFromFile(importExcelPath);

								      //处理Excel数据，更多请参考官方Demo

								      Spire.Xls.Worksheet sheet = workbook.Worksheets[0];

								      sheet.Range[1,1].Text = "test";//该方法也是从1开始，非0

								      workbook.SaveToFile(exportExcelPath);

								    }

5. EPPLUS　　

地址：https://github.com/pruiz/EPPlus/tree/master/EPPlus

没用过这个，暂时就不做介绍了

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。

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