many .php download file not encode in utf8 without bom it must have  in the content file. i Found a solution for remove. Copy this code to say bom.php, upload to root and run it. It will scan and remove BOM from all pages. Fixed my problem instantly. Make sure to backup beforehand as a precaution. Код: <?php // Tell me the root folder path. // You can also try this one // $HOME = $_SERVER["DOCUMENT_ROOT"]; // Or this // dirname(__FILE__) $HOME = dirname(__FILE__); // Is this a Windows host ? If it is, change this line to $WIN = 1; $WIN = 0; // That's all I need ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>UTF8 BOM FINDER and REMOVER</title> <style> body { font-size: 10px; font-family: Arial, Helvetica, sans-serif; background: #FFF; color: #000; } .FOUND { color: #F30; font-size: 14px; font-weight: bold; } </style> </head> <body> <?php $BOMBED = array(); RecursiveFolder($HOME); echo '<h2>These files had UTF8 BOM, but i cleaned them:</h2><p class="FOUND">'; foreach ($BOMBED as $utf) { echo $utf ."<br />\n"; } echo '</p>'; // Recursive finder function RecursiveFolder($sHOME) { global $BOMBED, $WIN; $win32 = ($WIN == 1) ? "\\" : "/"; $folder = dir($sHOME); $foundfolders = array(); while ($file = $folder->read()) { if($file != "." and $file != "..") { if(filetype($sHOME . $win32 . $file) == "dir"){ $foundfolders[count($foundfolders)] = $sHOME . $win32 . $file; } else { $content = file_get_contents($sHOME . $win32 . $file); $BOM = SearchBOM($content); if ($BOM) { $BOMBED[count($BOMBED)] = $sHOME . $win32 . $file; // Remove first three chars from the file $content = substr($content,3); // Write to file file_put_contents($sHOME . $win32 . $file, $content); } } } } $folder->close(); if(count($foundfolders) > 0) { foreach ($foundfolders as $folder) { RecursiveFolder($folder, $win32); } } } // Searching for BOM in files function SearchBOM($string) { if(substr($string,0,3) == pack("CCC",0xef,0xbb,0xbf)) return true; return false; } ?> </body> </html>