#triangulate mesh so binormals and tangents can export
    pm.select(exportGroup,replace=True)
    TriangulateMeshesInGroup(exportGroup)

    #Export selection to FBX
    groupToExport = None
    if(mode=="RootExportGroup"):
      print("Selecting group: " + str(exportGroup) + " to export to FBX.")
      groupToExport = pm.select(exportGroup,replace=True)
    elif(mode=="exportSelection"):
      print("Selecting group: " + str(exportSelection) + " to export to FBX.")
      groupToExport = pm.select(exportSelection,replace=True)
      pm.parent(groupToExport,world=True) #move group to top of hierarchy

    print("FBXLoadExportPresetFile from path: " + str(presetPath))
    mel.eval('FBXLoadExportPresetFile -f "'+presetPath+'"')
    print("Exporting: " + fbxFilename + ".fbx")
    mel.eval('FBXExport -f "'+fbxFilename+'" -s') #-s = selected instead of export all
    print("Export complete.")
  except Exception as e:
    print("Error occured, export failed. Re-opening file to restore the originally saved file.")
    pm.openFile(mayaFilePath, force=True)
    print e.message, e.args
    promptResult = pm.confirmDialog(
            title='Error',
            message="Export Failed. File re-opened to restore original. \n Error Message: " + str(e.message) + ". \n Error Args: " + str(e.args),
            button=['OK'],
            defaultButton='OK')
    pm.error("Error on attempt to export.")

  #Force reopening of the file to restore the saved file with references
  print("Re-opening file to restore the originally saved file.")
  pm.openFile(mayaFilePath, force=True)