Help Please.. Rhino cannot open .3dm file

Hi everyone…
i have rhino 4.0 SR9 and matrix 7.0 when i try to open .3dm object it says:
the file ring.3dm was created by a newer version of rhino this file cannot be read by rhino 4.0
how can i fix this?

And i just installed Rhinoceros v5.5 Corporate Edition 64-bit but it says “rhino 4” what is the problem?

Is your V4 illegal too? Sorry no such thing as a “Corporate Edition”

it is legal but i just found and installed this “corparate edition” to open 3dm files. Can i fix it? now i am downloading rh50_5.9.40624.03295 maybe it will fix

I DOWNLOADED RHINO 5… I CAN OPEN 3DM FILE IN RHINO5 BUT I CANT OPEN MY OBJECT IN MATRIX 7.0 IT STILL SAYS YOUR MODEL WAS CREATED BY A NEWER VERSION OF RHINOCEROS… THIS FILE CANNOT BE READ BY RHINO 4.0 İ JUST INSTALLED 5… PLEASE HELP

From the Rhino 5 Evaluation version,SaveAS Rhino 4, then open in Matrix. --Mitch