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macOS User Guide
- Welcome
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- Work across devices using Continuity
- Use iPhone as a webcam
- Use iPhone with Desk View
- Stream audio and video with AirPlay
- Use one keyboard and mouse to control Mac and iPad
- Hand off between devices
- Unlock your Mac with Apple Watch
- Make and receive phone calls on your Mac
- Sync music, books, and more between devices
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- What is Family Sharing?
- Set up Family Sharing
- Add a user or group
- Set up Screen Time for a child
- Share purchases with your family
- Watch and listen together with SharePlay
- Share a Photo Library
- Collaborate on projects
- Find content shared with you
- Find your family and friends
- Play games with your friends
- Resources for your Mac
- Resources for your Apple devices
- Copyright
If no app is set to open a document on Mac
If you can’t open a document because there is no default app set to open it, you can either choose an app already installed on your Mac or go to the App Store to find more apps.
Search the App Store: Click Search App Store to open the App Store. A list of apps that can open this type of document appears.
Choose an app that’s on your Mac: Click Choose Application, then choose an app from the list. Only apps that can open this type of document are available. Other apps are dimmed.
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