Here’s how you can find out the product number or version ID of Microsoft Office 2007 applications i.e. Word 2007, Excel 2007, etc.
Click top-left Office button marked as 4 windows joined together and click “Word options” if you are running Microsoft Word 2007;
Next, click “Resources” on left-menu and “About” button next to “about Microsoft Office Word 2007”;
The next screen will contain the Product ID and the Office version as below;