Save your scene
Select File > Save Scene (Ctrl+S).
The first time you save the scene, you are prompted to give it a location and filename.
Save your scene to a new file
Save your scene as a compressed archive file
For easier file system maintenance and backup, you can save the scene file and its associated companion directory into one compressed archive file.
Ensure there is a “zip” extension in the file name.
Save your scene with associated textures
To easily share complex files with many textures, you can save the scene file and its textures into an associated companion directory.
All image textures used in the scene wil be copied to the companion directory for the file.