FBX Export dialog

Widget Description
File A file path and name must be entered to continue. Click ... Browse to enter the information.
... (Browse) Click ... Browse to enter the filename and file path.
Unit Click the down arrow to see the list of options. Select the unit of measurement that matches your model.
Export as animation Check this box if you want to export the entire animation. Leave it unchecked if you simply want to export the image on your screen.
Scale factor The default is 1. Increase the value to increase the size of the model.