How do you Un Triangulate an object?

I know that there is a triangulate modifier but is there a way I can make it squares? Because i am using a model for some testing but it is triangulated. Is it possible to make it squares? like squaringulate? (that was a joke)

In edit mode press Alt-J (or Ctrl-F > Tris to Quads)
It’s not perfect, but it will do the job.

oh god that should of been the correct term xD

Tris to quads, yeah.
And you will finish with a mesh 1/3 triangulated 2/3 quadrangulated (another term xD)
No there isn’t an efficient way to do it.
Retopology only, (or using another application for autoretopology, (3dcoat, zbrush))