Is this download version the real thing or just a 30-day trial? If the former, does it include a serial number?
The Embarcadero RAD Studio XE3 is not a free product which means you will have to buy it in order to obtain the full version. You can request a demo through the link posted below, where you have to enter your details and someone from Embarcadero will contact you to provide additional information as well as demo activation instructions.
Note: This is the only way to download the demo for the software.