Exporting data in text file

Guys,

Here is what I am trying to do:

I am trying to pull data from a DB an export it to the user in a comma delimited text file.

I found this:
http://www.4guysfromrolla.com/webte...ject/faq3.shtml

Do I need to save the actual textfile or is it possible to stream the text file out to the browser? If the answer is yes, how do I stream it after it is saved and delete it once it is saved by the user?

Thanks

http://www.xefteri.com/articles/may082002/default.aspx

may be some use.