If you want to install and Activate Office Setup 2007, then follow these steps: For complete application visit office.com/setup 2007

Insert your Office 2007 CD into the drive.

Navigate to the CD drive and click SETUP.EXE.

When prompted, enter the product key.

Read and accept the Microsoft Software License Terms

Click Continue.

Follow the prompts and after Office installs, click Close.

https://manage-office.com/office-setup-2007/