Question: CGI script returning binary data from a POST form submit

[Charlie Taylor]

I'm having trouble passing binary data back from a python CGI script when a
POST is used to send FORM data to a Windows Server.

In this case, I've used all of the "import msvcrt" approaches and while it
seems to work fine for images, passing back an excel spreadsheet
('Content-Type: application/vnd.ms-excel') is just not working unless I
submit the FORM with a GET.

Any hints would be greatly appreciated.