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上面是一个比较通用的解决方案（据说xp+ie7会有问题，未验证）。
这个问题是在使用ci-excel-generation-library时遇到的，解决办法：
filename . .xls; $encoded_filename = urlencode($filename); $encoded_filename = str_replace(+, %20, $encoded_filename); 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/vnd.ms-excel;charset=utf-8);
header(content-type: application/download);; if (preg_match(/msie/, $ua)) { header('content-disposition: attachment; filename=' . $encoded_filename . ''); } else if (preg_match(/firefox/, $ua)) { header('content-disposition: attachment; filename*=utf8\'\'' . $filename . ''); } else { header('content-disposition: attachment; filename=' . $filename . ''); } header(content-transfer-encoding: binary ); }?>
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