Fixing Adobe Error 53 on Mac Office (Word/Powerpoint)

This article explains how to fix the annoying "Run time error 53" on Mac when opening Word, Powerpoint documents.

With finder open, click Go->Go to folder

Manually type in 

/Library/Application Support/Microsoft/Office365/User Content.localized/Startup/

Within that folder, should be folder for Word, Powerpoint, etc.

Delete any files within each Word,Powerpoint folder.

Quit and Reopen a document to verify error is gone.

Plan B:  
Delete the /Startup Folder in /Library/Application Support/Microsoft/Office365/User Content.localized and reboot.
Test again.