[php] 엑셀다운로드 한글 깨질 경우

header("Content-type: application/vnd.ms-excel; charset=utf-8");
header("Content-Disposition: attachment; filename=customs_report_list_".date("Ymd_Hms").".xls" );
header("Content-Description: PHP4 Generated Data");
header("Pragma: no-cache");
header("Expires: 0");

//이렇게 사용했는데 깨질경우가 생기는데 아래 코드를 넣어주면 해결
print("<meta http-equiv=\"Content-Type\" content=\"application/vnd.ms-excel; charset=utf-8\">");