The main file-handling commands are on the Application menu. Buttons for some of the most important appear on the Quick Access toolbar, as well. These commands are for creating, opening, and saving scenes; importing and exporting other 3D file formats; exiting 3ds Max; and other operations.
New clears the contents of the current scene without changing system settings (viewport configuration, snap settings, Material Editor, background image, and so on). The New command also gives you the option, when you use it while a populated scene is active, to reuse objects from the current scene in the new one.
Reset clears all data and resets 3ds Max settings (viewport configuration, snap settings, Material Editor, background image, and so on). Resetting restores the startup defaults, saved in the file maxstart.max, and removes any customization you might have done during the current session.
Open a scene file (MAX file), character file (CHR file), or VIZ Render file (DRF File) from an Open File dialog. You can also choose a previously opened file and use command-line options.
Save updates the scene file by overwriting the previously saved version of the scene. If no scene was previously saved, this command works like Save As.
Save As lets you save the current scene file in MAX or CHR format under a different file name.
Import loads or merges geometry files that are not 3ds Max scene files.
Export converts and exports 3ds Max scenes to various geometry formats.
The Send To submenu provides interoperability with other Autodesk Media & Entertainment products.
Commands on the References submenu manage data stored in other files, either in a container, as external references, or as a linked file.
Commands on the Manage submenu manage your current 3ds Max project and assets.
Commands on the Properties submenu show or set properties of the current 3ds Max scene.
Exit closes 3ds Max. If you have unsaved work, you'll be asked if you want to save it.
One of these dialogs appears when you attempt to open or render a scene with bitmaps or photometric files (IES, CIBSE, LTLI) whose path is no longer current. This can happen if the bitmaps have been moved or deleted, or if the scene has been placed on a system with a different drive mapping than the system on which it was created.
