using Spire.Xls;

using System.Drawing;



namespace InsertImage_XLS

{

  class Program

  {

    static void Main(string[] args)

    {

      //创建Workbook对象

      Workbook workbook = new Workbook(); 

      //获取第一张工作表

      Worksheet sheet = workbook.Worksheets[0];

      //指定列宽、行高

      sheet.Columns[0].ColumnWidth = 50;

      sheet.Rows[0].RowHeight = 160;



      //加载图片，添加到指定单元格

      ExcelPicture picture = sheet.Pictures.Add(1,1, "tp.png");

      //指定图片宽度和高度

      picture.Width = 300;

      picture.Height = 180;



      //通过LeftColumnOffset和TopRowOffset属性值设置图片在单元格中的横向、纵向对齐

      picture.LeftColumnOffset = 75;

      picture.TopRowOffset = 20;



      //保存文档

      workbook.SaveToFile("result.xlsx", FileFormat.Version2013);

      System.Diagnostics.Process.Start("result.xlsx");

    }

  }

}

public void InsertPicture(string RangeName, string PicturePath, Microsoft.Office.Interop.Excel.Worksheet worksheet)
    {
      Microsoft.Office.Interop.Excel.Range m_objRange = worksheet.get_Range(RangeName, Type.Missing);
      m_objRange.Select();

      float PicLeft, PicTop, PicWidth, PicHeight;　　　　//距离左边距离，顶部距离，图片宽度、高度
      PicTop = Convert.ToSingle(m_objRange.Top);
      PicWidth = Convert.ToSingle(m_objRange.MergeArea.Width);
      PicHeight = Convert.ToSingle(m_objRange.Height)-10;
      PicWidth = Convert.ToSingle(m_objRange.Width)-10;
      PicLeft = Convert.ToSingle(m_objRange.Left);//+ (Convert.ToSingle(rng.MergeArea.Width) - PicWidth) / 2;     
         
      try
      {
        //worksheet.Shapes.AddPicture(PicturePath, Microsoft.Office.Core.MsoTriState.msoFalse, Microsoft.Office.Core.MsoTriState.msoTrue, PicLeft, PicTop, PictuteWidth, PictureHeight);
        worksheet.Shapes.AddPicture(PicturePath, Microsoft.Office.Core.MsoTriState.msoFalse, Microsoft.Office.Core.MsoTriState.msoTrue, PicLeft, PicTop, 90, 70);
      }
      catch
      {
      }
    }