Exporting table from SQL into Excel with PHPExcel - php

Question

I'm using this example in order to write to Excel from my SQL DB. Most of my data is in cyrilllic, so i am using utf8_unicode_ci(can be seen in code) encoding.
The issue is as follows: module writes into file, but its contents are unreadable due to some mistake. Or maybe it's just Excel '03(i know it's old, yes) i am using? Could anyone help me with this?
<?php
//$host='localhost'; $user='me'; $pass='mypassword'; $DataBase='mydatabase';//define the correct values
require 'connection_data.php';
// open the connexion to the databases server
$Link = new mysqli(DB_SERVER, DB_USER, DB_PASSWORD, DB_DATABASE) or die('Can\'t connect !');
$Link->set_charset('utf8_unicode_ci');//if not by default
//your request
$request='SELECT * FROM Reports';
$result= $Link->query($request);//get the result (ressource)
/** Include PHPExcel */
require_once 'PHPExcel.php';//change if necessary
// Create new PHPExcel object
$objPHPExcel = new PHPExcel();
$F = $objPHPExcel->getActiveSheet();
$Line=1;
while($row = $result->fetch_assoc()){//extract each record
$F->setCellValue('A'.$Line, $row['Rep_ID']);
$F->setCellValue('B'.$Line, $row['TownName']);
$F->setCellValue('C'.$Line, $row['ShopAdress']);
$F->setCellValue('D'.$Line, $row['ShopName']);
$F->setCellValue('E'.$Line, $row['ProductName']);
$F->setCellValue('F'.$Line, $row['ProductPrice']);
$F->setCellValue('G'.$Line, $row['AddDate']);
$F->setCellValue('C'.$Line, $row['UserName']);//write in the sheet
++$Line;
}
// Redirect output to a client’s web browser (Excel5)
header('Content-Type: application/vnd.ms-excel');
header('Content-Disposition: attachment;filename="report.xls"');
header('Cache-Control: max-age=0');
$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel5');
$objWriter->save('php://output');
exit;
?>