Using System Settings

In the System Settings screen, go to Personalization > Applications > Default Applications, then use the menus to select your preferred default applications.

Using Dolphin

  1. Open Dolphin.

  2. Navigate to the folder that contains the file you want to open.

  3. Right-click the file.

  4. Go to Open With > Other Application.

    The Choose Application dialog appears.

  5. Choose the application you want to use from the list.

  6. Select Remember application association for all files of type [file type].

  7. Click OK.