รบกวนสอบถามเรื่องการเปิดไฟล์ excel เพื่อแก้ไขข้อมูลด้วย php ไม่ทราบว่ามีวิธีอย่างไรบ้างครับ

$file = fopen('UpdateDB/DB.txt',"r");
			 $data = fgets($file);
			 fclose($file);

<?
	//*** Get Document Path ***//
	$strPath = realpath(basename(getenv($_SERVER["SCRIPT_NAME"]))); // C:/AppServ/www/myphp
	//*** Excel Document Root ***//
	$strFileName = "b1.xls";

	//*** Connect to Excel.Application ***//
	$xlApp = new COM("Excel.Application");
	$xlBook = $xlApp->Workbooks->Add();
	$xlSheet1 = $xlBook->Worksheets(1);
	
	$xlApp->Application->Visible = False;	

	//*** Create Sheet 1 ***//
	$xlBook->Worksheets(1)->Name = "My Sheet1";								
	$xlBook->Worksheets(1)->Select;

	//*** Width & Height (A1:A1) ***//	
	$xlApp->ActiveSheet->Range("A1:A1")->ColumnWidth = 40.0;
	$xlApp->ActiveSheet->Range("A1:A1")->RowHeight = 25.0;


	//*** Write text to Row 1 Column 1 ***//
	$xlApp->ActiveSheet->Cells(1,1)->Value = "ThaiCreate.Com ";
	$xlApp->ActiveSheet->Cells(1,1)->Font->Name = "Tahoma";		
	$xlApp->ActiveSheet->Cells(1,1)->Font->Bold = True;
	$xlApp->ActiveSheet->Cells(1,1)->VerticalAlignment = -4108; //*** Center  Rows ***//
	$xlApp->ActiveSheet->Cells(1,1)->HorizontalAlignment = -4108; //*** Center Column ***//
	$xlApp->ActiveSheet->Cells(1,1)->Font->Size = 12;


	//*** Write text to Row 1 Column 2 ***//	
	$xlApp->ActiveSheet->Cells(1,2)->Value = "Mr.Weerachai Nukitram ";
	$xlApp->ActiveSheet->Cells(1,2)->Font->Name = "Tahoma";
	$xlApp->ActiveSheet->Cells(1,2)->Font->Size = 20;

	//*** Width & Height (A2:A2) ***//
	$xlApp->ActiveSheet->Range("A2:A2")->BORDERS->Weight = 1;  //*** Border ***//


	//*** Write text to Row 1 Column 2 ***//
	$xlApp->ActiveSheet->Cells(2,1)->Value = "I Love ThaiCreate.Com ";
	$xlApp->ActiveSheet->Cells(2,1)->Font->Name = "Tahoma";
	$xlApp->ActiveSheet->Cells(2,1)->Font->Size = 10;
	$xlApp->ActiveSheet->Cells(2,1)->HorizontalAlignment = 4;

	//*** Width & Height (A3:D3) ***//
	$xlApp->ActiveSheet->Range("A3:D3")->BORDERS->Color = 44; //*** Border Color ***//
	$xlApp->ActiveSheet->Range("A3:D3")->BORDERS->Weight = 1;  //*** Border ***//
	$xlApp->ActiveSheet->Range("A3:D3")->MergeCells = True;	//*** Merge Cells ***//

	//*** Write text to Row 1 Column 2 ***//
	$xlApp->ActiveSheet->Cells(3,1)->Value = "I Love My Live";		
	$xlApp->ActiveSheet->Cells(3,1)->Font->Name = "Tahoma";
	$xlApp->ActiveSheet->Cells(3,1)->Font->Size = 10;
	$xlApp->ActiveSheet->Cells(3,1)->HorizontalAlignment = -4108;
	$xlApp->ActiveSheet->Cells(3,1)->Interior->ColorIndex = 44; //*** Background Color ***//

	//*** Write text to Row 4 Column 5 ***//
	$xlApp->ActiveSheet->Cells(4,5)->Value = "My Live";
	$xlApp->ActiveSheet->Cells(4,5)->Font->Name = "Tahoma";
	$xlApp->ActiveSheet->Cells(4,5)->Font->Size = 10;
	$xlApp->ActiveSheet->Cells(4,5)->Font->Italic = True;
	$xlApp->ActiveSheet->Cells(4,5)->Font->ColorIndex = 4;
	$xlApp->ActiveSheet->Cells(4,5)->EntireColumn->AutoFit;  //*** AutoFit Column ***//


	@unlink($strFileName); //*** Delete old files ***//	

	$xlBook->SaveAs($strPath."/".$strFileName); //*** Save to Path ***//
	//$xlBook->SaveAs(realpath($strFileName)); //*** Save to Path ***//

	//*** Close & Quit ***//
	$xlApp->Application->Quit();
	$xlApp = null;
	$xlBook = null;
	$xlSheet1 = null;
?>
Excel Created <a href="<?=$strFileName?>">Click here</a> to Download.