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void CFindPeakDlg::OnBegin()
{
  // TODO: Add your control notification handler code here

    CFileDialog openPre(true,"*.ROH",NULL,OFN_HIDEREADONLY|OFN_OVERWRITEPROMPT|OFN_ALLOWMULTISELECT,
    "´ý´¦ÀíÎļþ(*.ROH)|*.ROH|ËùÓÐÎļþ(*.*)|*.*||");
    DWORD MAXFILE = 256000; //ÉèÖûº³åÇø£¬
    openPre.m_ofn.nMaxFile = MAXFILE;
    char* pc = new char[MAXFILE];
    openPre.m_ofn.lpstrFile = pc;
    openPre.m_ofn.lpstrFile[0]=NULL;

    int index1=0,x=0;//ÎļþÊýÁ¿Í³¼Æ

    if(openPre.DoModal()==IDOK)
  { 
      //Æô¶¯EXCEL·þÎñÆ÷£¬ÉèÖóõʼÊôÐÔ
      _Application app;
      Workbooks books;
      _Workbook book;
      Sheets sheets;
      _Worksheet sheet;
      Range range; 
      LPDISPATCH lpDisp;
      COleVariant covOptional((long)DISP_E_PARAMNOTFOUND, VT_ERROR);

      //Create Excel server (start Excel)
      if(!app.CreateDispatch("Excel.A


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