Subject: IE 6 and 7 unable to download generated xls

Opera and Mozilla generate and download just fine. IE (tried 6 and 7) throw message:
---
Internet Explorer cannot download index.php?pid=download from www.mysite.com
Internet Explorer was not able to open this Internet site. The requested site is either unavailable or cannot be found. Please try again later.
---

Do you have ideas what is the reason IE cant get the file from stream?

I had the same problem.

Use this headers:

header ("Content-type: application/x-msexcel");
header ("Content-Disposition: attachment; filename=\"" . basename($export_file) . "\"" );
readfile($export_file);
exit;

I am using those headers and still get the errors.

Any ideas.

just reload your apache server...

Use this code:

header("Pragma: public");
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Content-Type: application/force-download");
header("Content-Type: application/octet-stream");
header("Content-Type: application/download");
header("Content-Disposition: attachment; filename=".basename($export_file).";");
header("Content-Transfer-Encoding: binary");
header("Content-Length: ".filesize($export_file));
readfile($export_file);
exit;