Autodesk Help:-
System Globals and Methods are used to access the file name and path and load, save, merge, import, and export 3ds Max scenes.
Scene File Path and Name
Loading MAX Files
Merging MAX Files
3ds Max Load and Save Dialogs
MAX File Object Names
Save MAX File
Hold and Fetch
Checking For MAX File
Importing Files
Exporting Files
Saving Nodes
Check For Save