Install the Netflix app from the Mac App Store
Sign in to your Netflix account
Open the movie or show you want to download
Check that the title has a download icon
Click the download icon
Wait for the download to finish
Open the Netflix app and go to Downloads to watch offline
Make sure your Mac is running a supported macOS version
Use a compatible Mac model if the download option is unavailable
Update the Netflix app if downloads do not appear
Ensure you have enough storage space on your Mac