microsoft-auto-update

Install command: 
brew install --cask microsoft-auto-update

Name: Microsoft Auto Update

Provides updates to various Microsoft products

https://docs.microsoft.com/officeupdates/release-history-microsoft-autoupdate

Cask JSON API: /api/cask/microsoft-auto-update.json

Cask code: microsoft-auto-update.rb on GitHub

Current version: 4.80.25073044

Requirements: macOS >= 10.11

Versions:

Intel high sierra 4.63.23091003
sierra 4.51.22091101
el capitan 4.40.21101001

Analytics:

Installs (30 days)
microsoft-auto-update 6,148
Installs (90 days)
microsoft-auto-update 17,597
Installs (365 days)
microsoft-auto-update 76,332