Net 读取Excel

别人的参考代码

//引用Microsoft.Office.Interop.Excel.dll文件
//添加using
using Microsoft.Office.Interop.Excel;
using Excel=Microsoft.Office.Interop.Excel;//设置程序运行语言
System.Globalization.CultureInfo CurrentCI = System.Threading.Thread.CurrentThread.CurrentCulture;
System.Threading.Thread.CurrentThread.CurrentCulture = new System.Globalization.CultureInfo("en-US");
//创建Application
Excel.Application xlApp = new Excel.Application();
//设置是否显示警告窗体
excelApp.DisplayAlerts = false;
//设置是否显示Excel
excelApp.Visible = false;
//禁止刷新屏幕
excelApp.ScreenUpdating = false;
//根据路径path打开
Excel.Workbook xlsWorkBook = excelApp.Workbooks.Open(path, 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);
//获取Worksheet对象
Excel.Worksheet xlsWorkSheet = (Worksheet)xlsWorkBook.Worksheets["sales plan"];***获取最后一行、一列的两种方法***
//获取已用的范围数据
int rowsCount = xlsWorkSheet.UsedRange.Rows.Count;
int colsCount = xlsWorkSheet.UsedRange.Columns.Count;
int rowsCount = xlsWorkSheet.get_Range("A65536", "A65536").get_End(Microsoft.Office.Interop.Excel.XlDirection.xlUp).Row;
int colsCount = xlsWorkSheet.get_Range("ZZ1", "ZZ1").get_End(Microsoft.Office.Interop.Excel.XlDirection.xlToLeft).Column;***将Excel数据存入二维数组***
//rowsCount：最大行  colsCount：最大列
Microsoft.Office.Interop.Excel.Range c1 = (Microsoft.Office.Interop.Excel.Range)xlsWorkSheet.Cells[1, 1];
Microsoft.Office.Interop.Excel.Range c2 = (Microsoft.Office.Interop.Excel.Range)xlsWorkSheet.Cells[rowsCount, colsCount];
Range rng = (Microsoft.Office.Interop.Excel.Range)xlsWorkSheet.get_Range(c1, c2);
object[,] exceldata = (object[,])rng.get_Value(Microsoft.Office.Interop.Excel.XlRangeValueDataType.xlRangeValueDefault);//在第一列的左边插入一列
Excel.Range xlsColumns = (Excel.Range)xlsWorkSheet.Columns[1, System.Type.Missing];
xlsColumns.Insert(XlInsertShiftDirection.xlShiftToRight, Type.Missing);
//xlsSheetTemplateMajor_Meisai.Cells.get_Range(xlsSheetTemplateMajor_Meisai.Cells[1, 1], xlsSheetTemplateMajor_Meisai.Cells[65535, 1]).Insert(Type.Missing, Type.Missing);Excel.Range rng;rng = worksheet.get_Range("A:A", "A:A");rng.Insert(Excel.XlDirection.xlToRight, Excel.XlInsertFormatOrigin.xlFormatFromLeftOrAbove);
Excel.Range rng = (Microsoft.Office.Interop.Excel.Range)xlsWorkSheet.Columns[12, Type.Missing];
rng.Insert(XlInsertShiftDirection.xlShiftToRight, XlInsertFormatOrigin.xlFormatFromLeftOrAbove);//删除行
Range deleteRng = (Range)xlsWorkSheetSapExcel.Rows[2, System.Type.Missing];
deleteRng.Delete(Excel.XlDeleteShiftDirection.xlShiftUp);//删除一列数据
((Microsoft.Office.Interop.Excel.Range)xlWorkSheet.Cells[1, 11]).Select();
((Microsoft.Office.Interop.Excel.Range)xlWorkSheet.Cells[1, 11]).EntireColumn.Delete(0);
((Excel.Range)xlsSheetShareMajor_Meisai.Cells[1, 3]).EntireColumn.Delete (0);//设置背景色为红色
xlsWorkSheet.get_Range("A1", "A1").Interior.ColorIndex = 3;//设置Format属性  属性值可以通过在vba中录宏得到
Microsoft.Office.Interop.Excel.Range range1 = xlsWorkSheetAdd.get_Range("J1", "J65535");
range1.NumberFormat = "@";//文本格式
range1 = xlsWorkSheetAdd.get_Range("L1", "L65535");
range1.NumberFormat = "0.00";//保留两位小数
Excel.Range rng = xlsSheetShareMajor_Meisai.Columns["I", System.Type.Missing] as Excel.Range;
rng.NumberFormatLocal =@"yyyy/m/d";//设置日期格式//替换
Range Drng = xlsWorkSheetTemplate.get_Range("D1", "D65535");
Drng.Replace(" ", "", XlLookAt.xlPart, XlSearchOrder.xlByColumns, System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing);
Drng.TextToColumns(Drng, Excel.XlTextParsingType.xlDelimited, Excel.XlTextQualifier.xlTextQualifierSingleQuote, 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);//分列处理 设置为文本
Range TextToColumnRng = xlsWorkSheet.get_Range("E1", "E65535");
xlsWorkSheet.get_Range("E1", "E65535").TextToColumns(TextToColumnRng, Excel.XlTextParsingType.xlDelimited, Excel.XlTextQualifier.xlTextQualifierSingleQuote, 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);//设置公式
rng = xlMergeFileWorkSheet.get_Range("D2", "D" + rowcount);//设置列范围
rng.Formula = @"=IF(RC[-3]=""H"",""Survivor"",""Donor"")";//设置公式  @的问题
//rng.NumberFormat = "$0.00";//设置格式
copyRng = xlsSheetTemplateMajor_Meisai.get_Range("N3", "N" + lastRowTemplate);
copyRng.Formula = "=VLOOKUP(RC[-12],AR残!C[-13]:C[-11],2,0)";//通过行、列的索引获取值
string f = Convert.ToString(xlsSheetShareMajor_Meisai.get_Range(xlsSheetShareMajor_Meisai.Cells[2, 1], xlsSheetShareMajor_Meisai.Cells[2,1]).Value2);//筛选
//确定筛选范围
D1_rng = D1_TemSheet.Cells.get_Range(D1_TemSheet.Cells[1, 1], D1_TemSheet.Cells[1, 50]);
//执行筛选动作
rng.AutoFilter(5, "S", Microsoft.Office.Interop.Excel.XlAutoFilterOperator.xlFilterValues, Type.Missing, true);
rng.AutoFilter(6, "H", Microsoft.Office.Interop.Excel.XlAutoFilterOperator.xlOr, "F", true);
D1_rng.AutoFilter(D1_Column + 2, "#N/A", Microsoft.Office.Interop.Excel.XlAutoFilterOperator.xlFilterValues,"#N/A",false);//复制粘贴
D2_rng.Copy(Type.Missing);
D2_TemSheet.Cells.get_Range(D2_TemSheet.Cells[2, (D2_Column + 1)], D2_TemSheet.Cells[2, (D2_Column + 1)]).PasteSpecial(Excel.XlPasteType.xlPasteValues, Excel.XlPasteSpecialOperation.xlPasteSpecialOperationNone, false, false);//Find查找
rng = mySheet.get_Range("A1", "IV10").Find(arrLabel[j], Type.Missing,Microsoft.Office.Interop.Excel.XlFindLookIn.xlValues, Microsoft.Office.Interop.Excel.XlLookAt.xlWhole,Microsoft.Office.Interop.Excel.XlSearchOrder.xlByRows,Microsoft.Office.Interop.Excel.XlSearchDirection.xlNext, false, Type.Missing, Type.Missing);//文字占满单元格
range.EntireColumn.AutoFit();//另存
xlsWorkBook.SaveAs(FileName, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, XlSaveAsAccessMode.xlNoChange, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);***关闭对象***
System.Runtime.InteropServices.Marshal.ReleaseComObject(xlsWorkSheet);
System.Runtime.InteropServices.Marshal.ReleaseComObject(xlsWorkBook);
excelApp.Quit();
Kill(excelApp);//调用方法关闭进程
GC.Collect();/// <summary>
/// 关闭Excel进程
/// </summary>
public class KeyMyExcelProcess
{[DllImport("User32.dll", CharSet = CharSet.Auto)]public static extern int GetWindowThreadProcessId(IntPtr hwnd, out int ID);public static void Kill(Microsoft.Office.Interop.Excel.Application excel){try{IntPtr t = new IntPtr(excel.Hwnd);  //得到这个句柄，具体作用是得到这块内存入口int k = 0;GetWindowThreadProcessId(t, out k);  //得到本进程唯一标志kSystem.Diagnostics.Process p = System.Diagnostics.Process.GetProcessById(k);  //得到对进程k的引用p.Kill();   //关闭进程k}catch (System.Exception ex){throw ex;}}
}//关闭打开的Excel方法public void CloseExcel(Microsoft.Office.Interop.Excel.Application ExcelApplication, Microsoft.Office.Interop.Excel.Workbook ExcelWorkbook)
{ExcelWorkbook.Close(false, Type.Missing, Type.Missing);ExcelWorkbook = null;ExcelApplication.Quit();GC.Collect();KeyMyExcelProcess.Kill(ExcelApplication);
}

自己的实现

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;/// <summary>
/// 参考文档
/// https://www.jb51.net/article/132309.htm
/// </summary>namespace ExcelParser
{// excelusing Microsoft.Office.Interop.Excel;using System.Diagnostics;using MsExcel = Microsoft.Office.Interop.Excel;public class ExcelTool{public MsExcel.Application NewApp(bool visiable=false, bool alert=false){MsExcel.Application xlApp = new MsExcel.Application();//设置是否显示警告窗体xlApp.DisplayAlerts = alert;//设置是否显示ExcelxlApp.Visible = visiable;//禁止刷新屏幕, 可以加速显示//xlApp.ScreenUpdating = false;return xlApp;}public MsExcel.Workbook OpenFile(ref MsExcel.Application app,string path){return app.Workbooks.Open(path);}public void ExitApp(ref MsExcel.Application app){// workbook 索引从1开始for(int i = app.Workbooks.Count; i>0; i--) { app.Workbooks.Item[i].Close(false); // don't save changes}app.Workbooks.Close();app.Quit();}public void ForceKill(string processName="excel"){Process[] procs = Process.GetProcessesByName(processName);foreach (var pro in procs){pro.Kill();//没有更好的方法,只有杀掉进程}}public void SaveAsXlsx(ref MsExcel.Workbook wb, string path){var fmtPath = Path.GetFullPath(path);wb.SaveAs2(fmtPath, MsExcel.XlFileFormat.xlOpenXMLWorkbook);}public void SaveAsXlsm(ref MsExcel.Workbook wb, string path){var fmtPath = Path.GetFullPath(path);wb.SaveAs2(fmtPath, MsExcel.XlFileFormat.xlOpenXMLWorkbookMacroEnabled);}public void RunExcelMacro(ref MsExcel.Application app, string macroName, object[] parameters, out object rtnValue){// 根据参数组是否为空，准备参数组对象object[] paraObjects;if (parameters == null)paraObjects = new object[] { macroName };else{int paraLength = parameters.Length;paraObjects = new object[paraLength + 1];paraObjects[0] = macroName;for (int i = 0; i < paraLength; i++)paraObjects[i + 1] = parameters[i];}rtnValue = this.RunMacro(app, paraObjects);}private object RunMacro(object app, object[] oRunArgs){object objRtn;     // 声明一个返回对象// 反射方式执行宏objRtn = app.GetType().InvokeMember("Run", System.Reflection.BindingFlags.Default | System.Reflection.BindingFlags.InvokeMethod, null, app, oRunArgs);return objRtn;}public void PrintDebug(ref MsExcel.Workbook wb){Debug.WriteLine($"File format: {wb.FileFormat}, title: {wb.FullName}, VBA: {wb.HasVBProject}, app version: {wb.Application.Version} ");Debug.WriteLine($"Book Title:{wb.FullName}, saved?:{wb.Saved}, wbs:{wb.Worksheets.Count}");for(int i=0; i<wb.Worksheets.Count; i++){Worksheet sheet = wb.Worksheets.Item[i+1];var rg = sheet.UsedRange;Debug.WriteLine($"Sheet {i+1} => title:{sheet.Name}, range:{rg.Row},{rg.Column},{rg.Rows.Count}x{rg.Columns.Count}");}}public void ReadTest(ref MsExcel.Workbook wb){for (int i = 1; i <= wb.Worksheets.Count; i++){Worksheet sheet = wb.Worksheets.Item[i];Debug.WriteLine($"Sheet {sheet.Name} values:");var rg = sheet.UsedRange;for (int j = 1; j <= rg.Rows.Count; j++){Debug.Write($"{rg.Row+j-1} => ");for (int k = 1; k <= rg.Columns.Count; k++){Range cell = rg.Cells.Item[j, k];dynamic val = 0;string ty = "";if (cell.Value2 == null){// cell is blankval = null;ty = "null";}else if (cell.Value2 is string){// cell is textval = (string)cell.Value2;ty = "text";}else if (cell.Value is double){// cell is number;val = (double)cell.Value;ty = "number";}else if (cell.Value2 is double){// cell is dateval = DateTime.Now;ty = "date";}Debug.Write($"[{k-1+rg.Column}]={val}/{ty}, ");}Debug.WriteLine("");}}}}
}

使用代码：

        private void btn_read_xlsm_Click(object sender, EventArgs e){var app = msTool.NewApp();var wb = msTool.OpenFile(ref app, xlsmPath);msTool.PrintDebug(ref wb);msTool.ReadTest(ref wb);msTool.ExitApp(ref app);}private void button1_Click(object sender, EventArgs e){msTool.ForceKill();}private void button2_Click(object sender, EventArgs e){var app = msTool.NewApp(true);var wb = msTool.OpenFile(ref app, xlsmPath);msTool.PrintDebug(ref wb);object retval = null;msTool.RunExcelMacro(ref app, "Button2_Click", null, out retval);msTool.ReadTest(ref wb);msTool.ExitApp(ref app);}

Demo Excel:

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C# excel net core读取xlsm

Net 读取Excel

自己的实现

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