You may or may not be aware that when you send a digital file by email, the author's name is attached to and anyone can see it. Your computer received this information when you installed your operating system or other programs; generally these ask you for your name when you install them. Change the user name on a file is quick and easy to do.
Right-click on the document and click "Properties."
Click the "Summary" tab.
Delete everything in the author box and replace it with another author.
- document image by Claudio Calcagno from Fotolia.com