Microsoft Office 2016 15.27 and Office 2011 14.6.9
Microsoft has issued version 15.27 of its Office 2016 application suite with improvements to Excel, OneNote, and PowerPoint. The OneNote note-keeping app (also available as a free standalone app from the Mac App Store) now corrects spelling mistakes by using suggestions from the spell checker and enables you to find and fix accessibility issues in your notes with Tools > Accessibility Checker. For Office 365 subscribers, PowerPoint now lets you trim unwanted content from the beginning or end of audio or video files, and you can use CONCAT or TEXTJOIN to shorten text
formulas in Excel. On the security front, both Office 2016 and Office 2011, which Microsoft has updated to version 14.6.9, resolve memory corruption vulnerabilities. ($149.99 for one-time purchase, free update through Microsoft AutoUpdate, release notes, 10.10+)
Why am I getting automatic download reminders for an Office 2011 14.6.9 update when I have version 15.27 Why does it continue to give me these update reminders?
Look in your Applications folder; you probably have an older version of Office with the Microsoft AutoUpdate app.