Exporting to Excel using CSS

[Matt]

I have code that generates a dataset and sends the results to the user
and automatically opens Excel when the link is clicked. It works fine on
my own machine and one server but I get the following error on another
server:

Problems cam up in the following areas during load: Missing file
http://abc.com/app/mystylesheet.css

The style sheet is present on the website so it isn't missing. It's some
kind of permission problem but I don't know what. The working server
appears configured the same as the non-working server in IIS.

Here's a basic idea of how I'm sending the data to the user:

1) set response.contenttype = "application/vnd.ms-excel"
2) create stringwriter and htmltextwriter objects
3) write the HTML HEAD information (including the LINK to the
stylesheet) to the htmltextwriter object
4) write a BODY tag to the htmltextwriter
5) fill a datagrid with the query results
6) render the datagrid to the htmltextwriter
7) end the BODY and HTML tags in the htmltexwriter
8) reponse.write the stringwriter and do a response.end

 

[Matt]

It turns out that the problem is easy to recreate. If I save the file as
HTML to the server then try to open the file using Excel the same thing
happens. This is basically what is happening when I do the response.end and
send the file to the user. The LINK statement in the code tries to open the
CSS file but it can't find it.

Still not sure what I can do about it though.