Steps for Eclipse to set the default opening of a file

Learning android recently, you need to open XML files frequently. So you want to change the default way it's opened.

Solutions:

Set the default mode to open as an XML Editor.

Menu: Window    - >     Preferences    - >     General    - >     Editors    - >     File    Associations

File    Types:     XML *.

Associated    Editors:     XML Editor * * *   - >     The Default

In Associated    In the editors selection box, click "XML Editor***& PI; ", click the "Default" button.
You will see "XML Editor***  "Is at the top, which becomes" XML Editor(Default)***  ".

Ok, you again double click *. XML file to try, is not ok.