IIS corrupt file

[pomborenato]

i'm using in IIS with PHP Version 5.2.8 and file generated not open in correct format.

[alex-twbsd]

I had same issue on FreeBSD+Apache. Just need to clear output buffer before sending the header:

// clear output buffer
ob_end_clean();

header("Content-Type"........
.....
$writer->writeToStdOut();
.....

[mk-j]

If you can provide a short php program which reproduces the problem, then we can reproduce it and fix it. Otherwise there isn't enough information to reproduce and fix the reported issue.