How to Transmission of Large data accros network?

Can somebody help me. Is it a good method to transfer large data accros network? The query returns about 1 milion rows, and I must transfer them to client application and generate .xml files. Unfortunatelly it takes more then hour (sometimes I get timeout exception) :(.
Query takes about 1min, so transfer is a big problem :|.
I'm using C# and WebServices

re: How to Transmission of Large data accros network?

try to execute this locally and ftp the result file
best regards, guy przytula