in which case the answer's no, you can't. Your network is sending its data in packets. All networks (including the Internet) break data into packets - this page was sent to your machine in packets.
A packet is simply a word for a number of bytes. The file that you want to send is broken down into a series of - you guessed it - and sent across the network. All packets are made up of three segments - a header, a payload, and a trailer. The packets contain a number in the header (amongst other things) and when they reach a computer the header and trailer are removed, and the data payload is reassembled, using the number sequence that's contained in the packets' headers.
A typical packet would be around 1000 to 1500 bytes, depending on network configuration.
Is that of any help?