Export point cloud as OBJ - Rhino crashes?

Hi Can anyone help me export a 387 MB point cloud as OBJ ?
Rhino 7 seems to freeze every time I try to export as OBJ.
Is this a bug, is it just simply overly time-consuming (normal) - or is it just not possible?

If not really possible, do you have any other tips or suggestions how i get this (trimmed and edited) point cloud converted to OBJ, perhaps export as other format to other software that can do the job?

Thanks Hans Henrik

Hi Hans - if a smaller one works, then I’d guess it is just going to take a long time and make, potentially, quite a large file since obj is a text format.