C# 读写 excel (它支持html格式的excel文件)

这是通过微软office导出excel文件,为什么通过微软的office导出呢，因为我开始用的是npoi office导出，它不支持一种格式（就是html格式的excel文件）,但是office支持，所以，写个博客，给大家分享，分享

思维方式:通过读取文件的excel文件，再通过模版格式导出相应的格式

/// <summary>
/// 导出excel
/// </summary>
/// <param name="readFileName">读取文件路径</param>
/// <param name="saveFileName">保存文件内容</param>
public static void ReadFile(string readFileName, string saveFileName)
{
Microsoft.Office.Interop.Excel.WorkbookClass wbclass;
WorkbookClass wkTemp;
Worksheet ws;
Worksheet wsTemp;
Microsoft.Office.Interop.Excel.Application excelApp;
DirectoryInfo di = new DirectoryInfo(readFileName);

//遍历文件夹
if (di.Exists)
{
foreach (FileInfo item in di.GetFiles("*.xls"))
{
excelApp = new Microsoft.Office.Interop.Excel.Application();
object objOpt = System.Reflection.Missing.Value;
//item.FullName   读取execl文件
wbclass = (WorkbookClass)excelApp.Workbooks.Open(item.FullName, objOpt, false, objOpt, objOpt, objOpt, true, objOpt, objOpt, true, objOpt, objOpt, objOpt, objOpt, objOpt);
ws = (Worksheet)wbclass.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

Range rng1 = ws.Cells.get_Range("C1", "C" + rowsint);  //rang
Range rng2 = ws.Cells.get_Range("D1", "D" + rowsint); //rang
Range rng3 = ws.Cells.get_Range("E1", "E" + rowsint); //rang
Range rng4 = ws.Cells.get_Range("F1", "F" + rowsint); //rang

object[,] CallType = (object[,])rng1.Value2;
object[,] ActiveCall = (object[,])rng2.Value2;
object[,] PassivityCall = (object[,])rng3.Value2;
object[,] CallDate = (object[,])rng4.Value;

//通过模版读取
wkTemp = (WorkbookClass)excelApp.Workbooks.Open("D:\\Template.xls", objOpt, false, objOpt, objOpt, objOpt, true, objOpt, objOpt, true, objOpt, objOpt, objOpt, objOpt, objOpt);
wsTemp = (Worksheet)wkTemp.Worksheets.get_Item(1);

Range rngD = (Range)wsTemp.Columns["D", Type.Missing];//设置单元格格式
Range rngE = (Range)wsTemp.Columns["E", Type.Missing];//设置单元格格式

rngD.NumberFormat = "yyyy-mm-dd hh:mm:ss";
rngE.NumberFormat = "hh:mm:ss";
//通过模版写入信息excel文件
for (int i = 1; i < rowsint; i++)
{
wsTemp.Cells[i, 1] = CallType[i, 1].ToString();
wsTemp.Cells[i, 2] = ActiveCall[i, 1].ToString();
wsTemp.Cells[i, 3] = PassivityCall[i, 1].ToString();
wsTemp.Cells[i, 4] = PassivityCall[i, 1].ToString();
}
wsTemp.SaveAs(saveFileName + "\\1.xls", Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value);
excelApp.Workbooks.Close();//关闭打开的文档 否则学号会显示科学计数法。
excelApp.Quit();
}
}
}