This is 3D printable model of the Excelsior Class NCC-1701-B Enterprise from the Star Trek. It is a kit. The different colored parts are separated for easier printing.
Pieces of the necelles need to be separated into separate model in the slicer ;)
In the suffix of the files, there are color codes:
bl-blue
w-white
d-dark
Files without the sufix are done with grey color
For the assembly, please have a look at the following video.