It’s important therefore when uninstalling it that you make sure you uninstall all components, not just the main applications such as Word, Excel, Outlook and PowerPoint. Office 2016 is a huge package taking up more than 6GB of disk space (compared to 2.5GB in Office 2011 for Mac) with hundreds of files, libraries and components. If you’ve simply had enough of Office 2016 crashing on your Mac or just want to completely remove it, here’s how to fully uninstall Microsoft Office 2016 for Mac.