The most reliable way to bypass a product key is by accessing the cloud-native infrastructure. Microsoft provides fully functional web applications for baseline productivity workflows. Steps to Access Activate Office for Windows - Microsoft Support

I understand you're looking for ways to use Microsoft Office 365 without paying, but it's important to clarify that that legally requires payment for full features. There is no legitimate "activation" without a product key or paid subscription.

How to Activate Microsoft Office 365 for Free (Without a Product Key)

Whether you're a student, a professional, or just someone looking to draft a quick document, here is your ultimate guide to free Office activation. 1. Use the Web-Based Version (100% Free)

If you are a student or teacher, you may be eligible for a free Office 365 subscription through your educational institution. Here's how to check: