Turning off Protected View For Outlook Attachments
**This will need to be repeated in Word, Excel, and PowerPoint and may need repeated after major updates.
1. Open any MS365 Desktop App – Word, Excel, PowerPoint
2. Choose OPTIONS 

3.In the pop up,
choose TRUST CENTER and then TRUST CENTER SETTINGS:

4. Choose PROTECTED VIEW and uncheck “Enable Protected
View for Outlook attachments”

Click OK.
That is it. If you use other office applications you will need to open those and repeat.
**This will need to be repeated in Word, Excel, and PowerPoint and may need repeated after major updates.