Now that you’ve changed the default program for this file, the button for Change All is active. This button will set your Mac to use the selected application to open files of this type.

Mac OS X computers use a default application to open every file type based on its file extension. If you don't want to use the default application when opening a file, you can select "Open With ...

In the Open With section, if there’s an appropriate app in the list, you can select it and click Change All and confirm, and now all files with that extension open in that app. You can stop here.

How to change the default program a file opens with in Windows 7 When you open files that have a particular file extension, Windows will look at its configuration to determine what the default ...

In the Mac OS it is possible to change the default program the operating system will use to open a file when you double-click on it. After you have changed this file association, though, you may ...

Apps that open files In macOS, you can change what app opens a specific file type from the file itself. Right-click a file that you want to change the default app that opens, and select Get Info.

If you can't change default app by file type in Windows 11/10, then reset the problematic app, remove file type association, etc.

Alternatively, navigate to ‘Default Apps’ in Settings to set default programs for file types. Ensuring the correct application is set to open your file type often resolves this issue.

This simple change has successfully reset the default application for your targeted file type; now this program will consistently open when you select a certain type of file.