Use these options to set what happens when you select File > Export All, or File > Export Selection.
Specifies the file type to use for the scene export. The selected file type determines which export options appear in the Export Options window.
When on (default), exports the file with the extension for the selected File type.
These options change depending on what you select as the File type in the General Options.
For .mlt files, lets you toggle whether to use full names.
By default (when you select FBX Export as the file type to export), Maya LT uses the Autodesk Media & Entertainment preset to export the file. This preset provides the optimal settings for most animation workflows. Click Edit preset to modify this preset, or adjust options and create your own. See Creating a custom preset.