Try to open Word, select Preferences » User Information. Change your details there. I don't know if these settings apply to your whole Office installation though.
You could also change this company information in
/Users/<your-username>/Library/Preferences/com.microsoft.office.plist. You need the developer tools installed (for the Preference List editor). Find the key named
14\UserInfo\UserOrganization and change the string there.
As usual with Microsoft Office products for Mac, they go their own way and it does not seem to be that easy to change the information. Microsoft has a more detailed description on how to reset the Software License Registry information:
- Quit all Microsoft applications.
- Click on the Go in the top menu in Finder and choose Home.
- Open Library.
- Open Preferences.
- Click to select com.microsoft.office.plist and drag it to Trash
(Don't empty the Trash before the new information is entered).
- Open the Microsoft folder.
- Open Office 2011.
- Click to select Office Registration Cache and OLE Registration
Database and drag it to Trash (Don't empty the Trash before the new
information is entered).
- Restart the Mac.
- Launch Word/Excel/PowerPoint/Outlook and click Continue on the
- Select Yes or No to the 2 questions on the next window and click
Continue.12. Enter the correct user information on the next window.