Q:

Accidental notebook formatting?

As I was trying to save my notebook by hitting ctrl + s, I might have hit a different letter by accident and something unexpected happened:
An extra row appeared below the menus at the top:

and the check-mark seems to now permanently be set in:

Window -> Toolbar -> Formatting

(I tried clicking on it several times, but this check-mark never goes away.)
Worst of all, when creating a new cell, the cell now defaults to a Text cell instead of an input cell.
What happened here? Is there some way to revert my notebook to its original standard behavior?
EDIT:
Following suggestions in the answers, the EditBar is now gone, but all my calculation cells are still indented inward, while text cells are not indented, and creating a new cell also still defaults to a text cell instead of input. Any idea how to fix that?
Also, In: and Out: labels at the left are now grey and turn orange upon evaluation for some reason. This color scheme was not present before...

A:

Another possibility is to use CurrentValue:
CurrentValue[EvaluationNotebook[], WindowToolbars] = Inherited

{}

A:

I would open the Option inspector, make sure that global preferences are selected, then navigate Notebook options → Display options.
You should be able to deselect the EditBar from Windows toolbars to solve your problem.

