C#引用com组件Microsoft.Office.Interop.Excel.dll读取EXCEL文件

首先是Excel.dll的获取,将Office安装目录下的Excel.exe文件Copy到DotNet的bin目录下,cmd到该目录下,运行 TlbImp EXCEL.EXE Excel.dll 得到Dll文件。 再在项目中添加引用该dll文件. 

/读取EXCEL的方法   (用范围区域读取数据)
private void OpenExcel(string strFileName)
{
    object missing = System.Reflection.Missing.Value;
    Application excel = new Application();//lauch excel application
    if (excel == null)
    {
        Response.Write("<script>alert('Can't access excel')</script>");
    }
    else
    {
        excel.Visible = false; excel.UserControl = true;
        // 以只读的形式打开EXCEL文件
        Workbook wb = excel.Application.Workbooks.Open(strFileName, missing, true, missing, missing, missing,
         missing, missing, missing, true, missing, missing, missing, missing, missing);
        //取得第一个工作薄
        Worksheet ws = (Worksheet)wb.Worksheets.get_Item(1);
 
 
        //取得总记录行数   (包括标题列)
        int rowsint = ws.UsedRange.Cells.Rows.Count; //得到行数
        //int columnsint = mySheet.UsedRange.Cells.Columns.Count;//得到列数
 
 
        //取得数据范围区域 (不包括标题列) 
        Range rng1 = ws.Cells.get_Range("B2", "B" + rowsint);   //item
 
 
        Range rng2 = ws.Cells.get_Range("K2", "K" + rowsint); //Customer
        object[,] arryItem= (object[,])rng1.Value2;   //get range's value
        object[,] arryCus = (object[,])rng2.Value2;   
        //将新值赋给一个数组
        string[,] arry = new string[rowsint-1, 2];
        for (int i = 1; i <= rowsint-1; i++)
        {
            //Item_Code列
            arry[i - 1, 0] =arryItem[i, 1].ToString();
            //Customer_Name列
            arry[i - 1, 1] = arryCus[i, 1].ToString();
        }
        Response.Write(arry[0, 0] + " / " + arry[0, 1] + "#" + arry[rowsint - 2, 0] + " / " + arry[rowsint - 2, 1]);
    }
     excel.Quit(); excel = null;
    Process[] procs = Process.GetProcessesByName("excel");
 
 
    foreach (Process pro in procs)
    {
        pro.Kill();//没有更好的方法,只有杀掉进程
    }
    GC.Collect();
}