From the composition screen, press "Browse" which will take you to your file listings.
Select the appropriate file from the listing, then press the "Open" button. This will copy your file to the browse field box.
(To erase this file from the browse box, press "Reset File").
Press the "Attach File" button to include the chosen document to the composed message.
(An information message (with a Stop sign) will appear if the attached file does not contain the respective company's name. This is simply a precautionary measure; the system will still allow you to send the message).