In macOS, the Open With contextual menu that appears when you right-click (or Ctrl-click) on a file provides links to all the applications installed on your Mac that are associated with that file type.
At the top of the list is the default app that macOS launches whenever you double-click on files that share the same suffix or extension, with other apps associated with the file type below that, and an Other… option at the bottom which lets you choose an alternative app in case the one you want to use isn’t listed.
You can easily change the default app associated with a particular file to something else. To do so, click Get Info in the contextual menu and select another app from the Open With: dropdown list in the file’s Info pane. To use that app to open all files sharing the same extension, click the Change All… button and select Continue.
Read more at MacRumors.com