VRML Merge
Say, "Yes" if the panel asks.
The buttons all do what you think they will. Merge
files sews multiple small VRML files into a single file;
Convert to X3D takes your VRML file and makes it become
X3D (amazingly well-written X3D, and we've seen several convertors);
Convert to textures allows you to use PixelTextures
(avoid this as it makes the files humongous).