How to set or remove the default apps in Windows 10(see this post for solution). By setting up your default apps, You can open your file which has to selected listen to music, look at pictures, check mail, watch videos, and more.
To open Apps and Features settings in Windows 10, Click on Start Menu > Settings > Apps as you see in Image 1.
Then click on the ‘Default Apps’ option. Then the Default apps settings will open. As you see in the below image 2.
Here you will set default apps for Email, Maps, Music Player, Photo viewer, Video Player, and Web Browser.