First, it's crucial to understand what you are actually searching for when you look up the "Blue Edition."
If you find an ISO, you can verify its authenticity using specific SHA-1 checksums from official VL (Volume License) copies: microsoft office 2007 enterprise blue editioniso link
Microsoft officially ended all support for Microsoft Office 2007 on . First, it's crucial to understand what you are
Despite its name, it was not a separate retail product. It was essentially an ISO image of the Enterprise edition for an offline virtual machine)
If you have weighed the risks and still need the installation files (e.g., for an offline virtual machine), here is the safest path.