Force File Download

[Anon]

I'm going to download a *.txt file, but when the file was download, there have a unknow "Tab" in front of the data.????Please help?

$size = filesize("$file");

header ("Content-type: application/force-download");
header("Content-Length: $size");
header("Content-Disposition: attachment; filename=$file");
header("Content-Transfer-Encoding: binary");

$fh = @fopen("$file", "r");
fpassthru($fh);
exit;

[interactive]

force file download is either spam or a virus i would help you if the force wasn't there....