If you're having trouble finding a product key, you can also consider:
The Compounding Danger: Office 2007 is Unvalidated and Unsecure
Because GitHub is generally trusted by the tech community, users mistakenly assume the content hosted there is safe and vetted. However, repository owners can upload any text or script they want without automated security checks verifying the ethical or legal safety of the content. The Hidden Dangers of GitHub Product Keys microsoft office 2007 product key github
Office 2007 has not received a security patch since October 2017. Using it makes your system vulnerable to modern malware.
While there isn't one definitive "official" article on this specific niche, the intersection of Microsoft Office 2007 If you're having trouble finding a product key,
The Risks of Searching for a Microsoft Office 2007 Product Key on GitHub
Microsoft officially terminated all support for the Office 2007 suite on October 10, 2017. Using it makes your system vulnerable to modern malware
Using a product key that you did not purchase violates Microsoft’s End User License Agreement (EULA). Furthermore, downloading and executing scripts meant to bypass digital rights management (DRM) violates copyright laws in many jurisdictions. GitHub actively removes repositories that host pirated keys or activation cracks under Digital Millennium Copyright Act (DMCA) takedown requests. Safe and Modern Alternatives to Legacy Software