Hi all, Hope all are doing well!!!

I would like to make 3D printing of our product. Right now i have only part files in .xt format. I am planning to do assembly. In order to make 3D printing, the model should be in .stl file. My query is can i assemble all the part files (.xt format) in solidworks assembly and saves to .stl. Is it right way? Will all the parts become .stl format? please advise any one it will help others also.

Highly appreciate for your comments.