How to use TExcel.. VCL to retrieve an existing excel files & modify them

Hello! I use BCB5 TExcelApplication & other VCLs to retrieveing the existing excel files. I could connect and open an existing excel file. But I don't know how to code for locating an specificed Cells and modify these data. There are not any  examples for Excel from Borland. Anybody could give me some examples or tell me how to code to connect an Excelworkbook & Excelsheet and modify at a specific cells.
abdateAsked:
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GloomyFriarConnect With a Mentor Commented:
The working code is below. It do not use vcl components, but it really works ;-)

Variant XL,v0,v1,v2;

XL=CreateOleObject("Excel.Application.8");
XL.OlePropertySet("Visible",true);
v0=XL.OlePropertyGet("Workbooks");
v0.OleProcedure("Add");
v1=v0.OlePropertyGet("Item",1);
v0=v1.OlePropertyGet("Worksheets") ;
v0.OlePropertyGet("Item",1).OlePropertySet("Name","yellow");
v0.OlePropertyGet("Item",2).OlePropertySet("Name","red");
for (int j=1;j<3;j++)
{
v1=v0.OlePropertyGet("Item",j);
for (int i=1;i<11;i++)
{
v1.OlePropertyGet("Cells").OlePropertyGet("Item",i,1).OlePropertySet("Value",i);
v1.OlePropertyGet("Cells").OlePropertyGet("Item",i,2).OlePropertySet("Value",i*5);
v2=v1.OlePropertyGet("Cells").OlePropertyGet("Item",i,2);
v2.OlePropertyGet("Font").OlePropertySet("Color",clBlue);
v2.OlePropertyGet("Font").OlePropertySet("Bold",true);
v2.OlePropertyGet("Interior").OlePropertySet("ColorIndex",9-3*j);
}
v1.OlePropertyGet("Cells").OlePropertyGet("Item",11,1).OlePropertySet("Value","=SUM(A1:A10)");
v1.OlePropertyGet("Cells").OlePropertyGet("Item",11,2).OlePropertySet("Value","=SUM(B1:B10)");
}
XL.OlePropertySet("DisplayAlerts",false);
XL.OlePropertyGet("Workbooks").OlePropertyGet("Item",1).OleProcedure("SaveAs","test.xls");
XL.OleProcedure("Quit");
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abdateAuthor Commented:
Thanks,GloomyFriar!
Yes, I know these two URL, because you tell me on Delphi topics.
My problem is:I use Borland C++ and  I am not familiar BCB OLEfunction to tranlate from Delphi to BCB. There are no on line help and only one example for Word by Borland. I write down the following to open an existing Excel file and I don't how to translate the following Delphi codes

 Drag 3 VCL as xlsApp, xlsWB & xlsWS
 WideString _filename="..\test.xls";
 xlsApp->Workbooks->Open(_filename);
 xlsWB->ConnectTo(XLApp->Workbooks->get_Item(1));
 xlsWS->ConnectTo(xlsWB->Worksheets->get_item(1)); //compiler error here
 xlsWS->Activate;                                                        //compile error here
 xlsWS->Cells->SpecialCells(Excel_2k::Range)->Activate;//Compiler error here
then how to modify them ?
.....................................

Regards
abdate


 
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abdateAuthor Commented:
Drag 3 VCL as xlsApp, xlsWB & xlsWS
Then the following is the BCB code I made
 WideString _filename="..\test.xls";
 xlsApp->Workbooks->Open(_filename);
 xlsWB->ConnectTo(XLApp->Workbooks->get_Item(1));
 xlsWS->ConnectTo(xlsWB->Worksheets->get_Item(1));
 xlsWS->Activate();
There are no compiling error for the above codes,
then I try to modify xlsWS Cells data,font and colorindex like Delphi Codeing
xlsWS.Range['A1','A1'].Value := 'Hello World';
vMSExcel.Selection.Interior.ColorIndex := 6;
But I cannot, That's my problem



 
then how to modify them ?
.....................................
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GloomyFriarCommented:
Ok, I'll try to compile that.
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abdateAuthor Commented:
Thank you very much!
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