c# 操作excle

添加引用  Microsoft.Office.Interop.Excel;

添加命名空间 using Excel = Microsoft.Office.Interop.Excel;

//创建接口变量------------------------------------------

_Workbook _xlWorkBook = null;
Worksheet _xlWorkSheet = null;
Excel.Application _xlApp = null;

//创建excle Application----------------------------------

_xlApp= new Excel.Application();
//_xlApp.DisplayAlerts = false; //设置报警窗口
_xlApp.Visible = true;             //设置显示
 // _xlApp.ScreenUpdating = false; //设置屏幕刷新

//创建workbook ----------------------------------------

//打开已存在的workbook  path是文件路径
_xlWorkBook = _xlApp.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);

//创建worksheet--------------------------------------------

//得到指定的sheet

//Excel.Worksheet xlsWorkSheet = (Worksheet)xlsWorkBook.Worksheets["2013年"];
_xlWorkSheet = (Worksheet)_xlWorkBook.Sheets["2013年"];//得到指定的sheet
//_xlWorkSheet =(Worksheet) _xlWorkBook.ActiveSheet;//得到当前活跃sheet

//获取所有sheet

Sheets xlsWorkSheets = _xlWorkBook.Worksheets; 
foreach (var s in xlsWorkSheets)
{
 Worksheet xlsWorkSheet = s as Worksheet;
 string ss= xlsWorkSheet.Name;
}

//增加sheet页

// Worksheet workSheet = (Worksheet)_xlWorkBook.Worksheets.Add(System.Type.Missing, System.Type.Missing, System.Type.Missing, System.Type.Missing);

 //创建Excel.Range-----------------------------------------------------　

             //获取单元格内容
             var cell= (Range)_xlWorkSheet.Cells[1, 3];
             var cellvalue = cell.Value.ToString();
             string pathd = @"c:wellname.txt";
             _xlWorkSheet.Hyperlinks.Add(cell, pathd); //添加超链接

             //RowHeight   "1:1"表示第一行, "1:2"表示,第一行和第二行 
              ((Excel.Range)_xlWorkSheet.Rows["1:1", System.Type.Missing]).RowHeight = 100;
             //ColumnWidth "A:B"表示第一列和第二列, "A:A"表示第一列
              ((Excel.Range)_xlWorkSheet.Columns["A:B", System.Type.Missing]).ColumnWidth = 10;
              Excel.Range excelRange = _xlWorkSheet.get_Range(_xlWorkSheet.Cells[10, 5], _xlWorkSheet.Cells[10, 5]);
              excelRange.Select(); //选中区域
              _xlApp.ActiveWindow.FreezePanes = true;//冻结字段
              excelRange.Borders.LineStyle = 1; //区域边框线型
              excelRange.Borders.get_Item(XlBordersIndex.xlEdgeTop).LineStyle = Excel.XlLineStyle.xlContinuous;//区域顶部边框虚线
              excelRange.Borders.get_Item(XlBordersIndex.xlEdgeBottom).Weight = Excel.XlBorderWeight.xlMedium; //单元格下边框线粗细
              excelRange.Borders.get_Item(XlBordersIndex.xlEdgeBottom).ColorIndex = 3;//边框色彩
              excelRange.Font.Size = 15;//字体大小
              excelRange.Font.Underline = true;//下划线
              excelRange.HorizontalAlignment = XlHAlign.xlHAlignCenter;//字体在单元格内的对其方式
              excelRange.ColumnWidth = 15;//单元格的宽度 
              excelRange.Cells.Interior.Color = System.Drawing.Color.FromArgb(255, 204, 153).ToArgb();//单元格的背景色
              //合并单元格
              excelRange.Merge(excelRange.MergeCells);
              _xlWorkSheet.get_Range("A15", "B15").Merge(_xlWorkSheet.get_Range("A15", "B15").MergeCells);