I needed to know how to remove namespace from inside Maya. I have found a way to go about this. Let's say that in your scene file are objects with no name space ( Sphere1) and objects with a prefix of namespace (file:Sphere2). Presuming that the object names are unique and that, you, by chance imported objects from another file with a namespace, you do not want. How do I remove this namespace extension from the object. Save the .mb file as a .ma file. Open it in a text editor. Search for the prefix, in this case file: and replace it with nothing. Get it.