File > Save
Stores the scene data in a file.
If this is the first time the file is saved, the File Browser appears, prompting you to enter a file name.
Tip:
To export only the picked objects to a file, use File > Export > Active As 
.
Stores the scene data in a file.
If this is the first time the file is saved, the File Browser appears, prompting you to enter a file name.
To export only the picked objects to a file, use File > Export > Active As .