hi to all im posting here beacouse i dont know where else.
so this is the problem i have a very important file, and when i try to open it an error message appears saying that my file is not a rhino file. but i’ve been working on thet for weeks
You should probably run the Rescue3dm command on that file. That will analyze it and tell you if it can read any of it and what sections are corrupt.
Since this is just a V-Ray forum, we’ll only be able to help you to a point. On the McNeel newsgroup there are many many more Rhino experts there that will be able to help you out with this. I would definitely post something there.