change name record sent client?

i have webpage pulls information database, translates .csv format, writes record httpresponse.

string csv = getcsv();
response.clear();
response.contenttype = "text/csv";
response.write(csv);

this works fine, record sent fan problems. however, record sent client, name tide page used, instead some-more permitted name (like "data.csv").

alt text

my doubt is, i change name record combined cost tide but minute record hoop redirecting fan file's url?

edit: interjection responses guys. i got 4 same response, i only chose initial answer.

code1