The Maya FBX Exporter has
two options for Axis Conversion in the UI.
Y-up, or Z-up.
By default, the FBX
Exporter always exports the Up Axis of the Host application.
For Maya, this means that all scenes are exported with a Y-up world
You can export your scene
to a Z-up axis if the destination application does not support the
Y-up world axis and cannot convert the Y-up world axis of your scene.
Exporter applies Axis Conversions only to root elements
of the outgoing scene. If you have animation on a root object that
must be converted on export, these animation curves are resampled
to apply the proper axis conversion. To avoid resampling of these
animation curves, make sure to add a Root Node (dummy object) as
a parent of the animated object in your scene, before you export