Onboarding Flow: Onboarding Flow to enable users to seamlessly migrate into the new Outlook for Mac Theming: Customizable themes, colors and accents Get in control with new data source settings on Excel for Mac: Use the new Data Source Settings dialog box to manage Power Query data sources, clear login credentials, and change the file location Use your voice to change subject: New voice commands let you change subject while dictating Use your voice to send email and : New voice commands let you send mail and others while dictating Bring out your best writing with Editor: Editor reviews your writing and offer suggestions for spelling, grammar, and stylistic issues, like making sentences more concise, choosing simpler words, or writing more formally. A new way to reach the Accessibility tools: The Accessibility ribbon puts all the tools you need to create accessible content in one place.