The successor of the famous Office Resource Kit Tools (ORK) to customize the Office installation is now called Office Customization Tool (OCT) and is included within the original setup so you don’t need to download anything.
Step 1 – Creating the MSP file
To start the Office Customization Tool (OCT) type setup.exe /admin.
At the end of the process, the OCT saves your choices in a MSP file. The customization file results in uniform default configuration of the product for all users. You can allow Setup to apply the customization file automatically by storing it in the Updates folder at the root of the network installation point. During the installation, Setup finds and applies all the MSP files in the Updates folder – both customization files and Software Updates – that match that product.
Step 2 – Read more about customizing the MSP file
You can specify an alternate location for MSP files in Config.xml, or you can point to a particular customization file by using the /adminfile command-line option.
This is a good resource about the OCT on the web.