If you want to copy Office ribbon customization to another system you can export them and then import them through office. [more]

Export a customized ribbon:

You can export your ribbon and Quick Access Toolbar customizations into a file that can be imported on another computer.

  1. Click the File tab
  2. Under Help, click Options
  3. Click Customize Ribbon
  4. In the Customize the Ribbon window, click Import/Export
  5. Click Export all customizations

 Import a customized ribbon:

You can import customization files to replace the current layout of the ribbon and Quick Access Toolbar.  By being able to import the customization, you can keep Microsoft Office programs looking the same from computer to computer.  Note: When you import a ribbon customization file, you lose all prior ribbon and Quick Access Toolbar customizations.

  1. Click the File tab
  2. Under Help, click Options
  3. Click Customize Ribbon
  4. In the Customize the Ribbon window, click Import/Export
  5. Click Import customization file

See http://office.microsoft.com/en-us/outlook-help/export-or-import-a-customized-ribbon-HA101850649.aspx#_Toc263250006 for additional details.