有多个结构一样的Excel，带复杂表头需要合并为一个，且去掉多余的表头数据，可以用COM组件来读取每个Excel表格的Range来合并到一个新的表格中。样例如图
有很多相同格式的表格，合并代码如下：
using System; using System.Collections.Generic; using System.Text; using System.Reflection; using Excel = Microsoft.Office.Interop.Excel; namespace ConsoleApplication20 { //添加引用-COM-MicroSoft Excel 11.0 Object Libery class Program { static void Main( string [] args) { //M为表格宽度标志（Excel中的第M列为最后一列），3为表头高度 MergeExcel.DoMerge( new string [] { @ "E:/excel/类型A/公司A.xls" , @ "E:/excel/类型A/公司B.xls" }, @ "E:/excel/类型A/合并测试.xls" , "M" , 3); MergeExcel.DoMerge( new string [] { @ "E:/excel/类型B/统计表A.xls" , @ "E:/excel/类型B/统计表B.xls" }, @ "E:/excel/类型B/合并测试.xls" , "I" , 4); } } public class MergeExcel { Excel.Application app = new Microsoft.Office.Interop.Excel.ApplicationClass(); //保存目标的对象 Excel.Workbook bookDest = null ; Excel.Worksheet sheetDest = null ; //读取数据的对象 Excel.Workbook bookSource = null ; Excel.Worksheet sheetSource = null ; string [] _sourceFiles = null ; string _destFile = string .Empty; string _columnEnd = string .Empty; int _headerRowCount = 1; int _currentRowCount = 0; public MergeExcel( string [] sourceFiles, string destFile, string columnEnd, int headerRowCount) { bookDest = (Excel.WorkbookClass)app.Workbooks.Add(Missing.Value); sheetDest = bookDest.Worksheets.Add(Missing.Value, Missing.Value, Missing.Value, Missing.Value) as Excel.Worksheet; sheetDest.Name = "Data" ; _sourceFiles = sourceFiles; _destFile = destFile; _columnEnd = columnEnd; _headerRowCount = headerRowCount; } /// <summary> /// 打开工作表 /// </summary> /// <param name="fileName"></param> void OpenBook( string fileName) { bookSource = app.Workbooks._Open(fileName, Missing.Value, Missing.Value, Missing.Value, Missing.Value , Missing.Value, Missing.Value, Missing.Value, Missing.Value , Missing.Value, Missing.Value, Missing.Value, Missing.Value); sheetSource = bookSource.Worksheets[1] as Excel.Worksheet; } /// <summary> /// 关闭工作表 /// </summary> void CloseBook() { bookSource.Close( false , Missing.Value, Missing.Value); } /// <summary> /// 复制表头 /// </summary> void CopyHeader() { Excel.Range range = sheetSource.get_Range( "A1" , _columnEnd + _headerRowCount.ToString()); range.Copy(sheetDest.get_Range( "A1" ,Missing.Value)); _currentRowCount += _headerRowCount; } /// <summary> /// 复制数据 /// </summary> void CopyData() { int sheetRowCount = sheetSource.UsedRange.Rows.Count; Excel.Range range = sheetSource.get_Range( string .Format( "A{0}" , _headerRowCount + 1), _columnEnd + sheetRowCount.ToString()); range.Copy(sheetDest.get_Range( string .Format( "A{0}" , _currentRowCount + 1), Missing.Value)); _currentRowCount += range.Rows.Count; } /// <summary> /// 保存结果 /// </summary> void Save() { bookDest.Saved = true ; bookDest.SaveCopyAs(_destFile); } /// <summary> /// 退出进程 /// </summary> void Quit() { app.Quit(); } /// <summary> /// 合并 /// </summary> void DoMerge() { bool b = false ; foreach ( string strFile in _sourceFiles) { OpenBook(strFile); if (b == false ) { CopyHeader(); b = true ; } CopyData(); CloseBook(); } Save(); Quit(); } /// <summary> /// 合并表格 /// </summary> /// <param name="sourceFiles">源文件</param> /// <param name="destFile">目标文件</param> /// <param name="columnEnd">最后一列标志</param> /// <param name="headerRowCount">表头行数</param> public static void DoMerge( string [] sourceFiles, string destFile, string columnEnd, int headerRowCount) { new MergeExcel(sourceFiles, destFile, columnEnd, headerRowCount).DoMerge(); } } }
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