Issue
Whenever I want to open a file in the package explorer, it will be opened as a new tab in the same view as the package explorer. Last time I started Eclipse, the were all opened in a seperate editor view.
src="https://i.stack.imgur.com/WqKwP.png" alt="Screenshot">
Solution
You can try resetting your perspective.
In the upper right hand corner you can see your currently selected "Perspective" (you can also set it through Window-->Open Perspective-->Other). It will probably be "Java" for you. You can right-click on the perspective and choose "Reset". This will reset the perspective to it's default settings.
There is also Window>Reset Perspective as another way to reset.
Answered By - FriedSaucePots
Answer Checked By - Dawn Plyler (JavaFixing Volunteer)