While reading a Microsoft article stating that support/updates for Mac Office 2011 will end October 10th 2017, Microsoft noted that the Office 2011 installer would be available on “content delivery network (CDN)” until that date.

I had not heard of this CDN before, and the link provided in the Microsoft article takes you to https://macadmins.software, which appears to be a repository of Microsoft’s Mac installers, including installers for volume licenses and individual apps like Skype for Business 2016.  I will definitely be using the CDN in the future!