Pivot point problem when importing model

Hi, I’m a beginner and this must be a foolish question, but please help me.

So i impored object in .ply format and i set orgin to mass centre. I can rotate and zoom only to this center (i set zoom to mouse position in option) but i can’t change it! Even i set zoom to mouse position, it zoom to centre mass. I also trying to change pivot position to 3D cursor etc. but this just dont work. Also strange thing is fact that i set 3d cursor at 0,0,0 and my object was set at 0,0,250. Why is that? What i did wrong? :confused:

You did not lock view to active? in align view.