C++ excel DEE aplication set sell border

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MFC

Hello,

I have an application what is opening an excel file and I can write some date into cells, but I don`t know how to set some borders to that cells in what I put that data?

A tip be useful :).
Here is a part of the code:

  char szApp[] = "EXCEL";
  char szTopic[] = "C:\\Test.xls";
  char szCmd1[] = "[APP.MINIMIZE()]";
  char szItem1[256] ;  char szDesc1[256] ;
  char szItem2[256] ;  char szDesc2[256] ;
  char szItem3[256] ;  char szData3[256] ;
  char szCmd2[] = "[SELECT(\"R3C1\")][FONT.PROPERTIES(,\"Bold\")][SAVE()][QUIT()]";

  //DDE Initialization

  DWORD idInst=0;
  UINT iReturn;
  iReturn = DdeInitialize(&idInst, (PFNCALLBACK)DdeCallback, APPCLASS_STANDARD | APPCMD_CLIENTONLY, 0 );

   if (iReturn!=DMLERR_NO_ERROR){
      //printf("DDE Initialization Failed: 0x%04xn", iReturn);
      AfxMessageBox("DDE Initialization Failed");
//      Sleep(1500);
      return;}

   //Start DDE Server and wait for it to become idle.

  HINSTANCE hRet = ShellExecute(0, "open", szTopic, "", "", SW_SHOWNORMAL);
  if ((int)hRet < 33)
  {
      //printf("Unable to Start DDE Server: 0x%04xn", hRet);
      AfxMessageBox("Unable to Start DDE Server");
      Sleep(1500); DdeUninitialize(idInst);
      return;
  }
//  Sleep(1000);

  //DDE Connect to Server using given AppName and topic.

  HSZ hszApp, hszTopic;
  HCONV hConv;
  hszApp = DdeCreateStringHandle(idInst, szApp, 0);
  hszTopic = DdeCreateStringHandle(idInst, szTopic, 0);
  hConv = DdeConnect(idInst, hszApp, hszTopic, NULL);
  DdeFreeStringHandle(idInst, hszApp);
  DdeFreeStringHandle(idInst, hszTopic);
  if (hConv == NULL)
  {
      //printf("DDE Connection Failed.n");
      AfxMessageBox("DDE Connection Failed");
      Sleep(1500); DdeUninitialize(idInst);
      return;
  }

  //Execute commands/requests specific to the DDE Server.

  DDEExecute(idInst, hConv, szCmd1);
  DDERequest(idInst, hConv, szItem1, szDesc1);
  DDERequest(idInst, hConv, szItem2, szDesc2);
  /*insert data*/
  int count_items = list.GetItemCount();
  for (int i=0; i<count_items; i++)
      for (int j=0; j<15; j++)
      {
          CString tmp_item;
          tmp_item = list.GetItemText(i,j);
          CString tmp_sz;
          tmp_sz.Format("R%dC%d",i+7,j+1);

          strcpy(szItem3,tmp_sz);
          strcpy(szData3,tmp_item);
          DDEPoke(idInst, hConv, szItem3, szData3);
      }

  DDEExecute(idInst, hConv, szCmd2);

  //DDE Disconnect and Uninitialize.

  DdeDisconnect(hConv);
  DdeUninitialize(idInst);