Unlike in other Microsoft Office applications, there’s no Save command in OneNote. That’s because manually saving your work in OneNote is never necessary. OneNote automatically and continually remembers and saves everything you do — including typing, editing, formatting, organizing, searching, and sharing your notes. Mar 12, 2020 What's New in Microsoft Office 2016. Version 16.16.12 (19071500): Office 2016 for Mac is a version of Office that’s available as a one-time purchase from a retail store or through a volume licensing agreement. It will be supported with security updates and bug fixes, as needed, until October 13, 2020.
Unlike in other Microsoft Office applications, there’s no Save command in OneNote. That’s because manually saving your work in OneNote is never necessary.
OneNote automatically and continually remembers and saves everything you do — including typing, editing, formatting, organizing, searching, and sharing your notes. You can even safely exit OneNote at any time without first closing your notebooks or manually saving any of your work. OneNote saves and retrieves everything automatically.
Don’t believe it? Try it out for yourself. Go to any page in your notebook, type some text, and then immediately exit OneNote. Start it up again and you’ll see the last page you were on — complete with the last text you typed.
Themes provide a complete design for your document, including background designs, font styles, colors, and layouts. You can customize the themes that come with Office and save them so you can use them over and over again.

If you haven't already applied a theme, on the Design tab, click Themes, and then click the one you want to use.
Customize the theme any way you like by changing the colors, fonts, paragraph spacing, watermark, background colors, or page borders on the Design tab.
On the Design tab, click Themes, and then click Save Current Theme.
In the Save Current Theme dialog box, type a name for your new theme and click Save.
To apply your theme in another document, on the Design tab, click Themes, and then select the theme from the Custom section.
In Office for Mac 2011, you create a custom theme in PowerPoint and then use it in Word or Excel.
To learn how to create a theme in PowerPoint, see Create your own theme in PowerPoint.
Note: Themes work more effectively when text is formatted by applying styles.
Apply a custom theme in Word or Excel

Microsoft Office 2016 Mac Background Save Free
Open the document that you want to apply the new theme to.
On the Home tab, under Themes, click Themes, and then under Custom, click the theme that you created in PowerPoint.