diff --git a/examples/other/export_x3d.py b/examples/other/export_x3d.py
index <HASH>..<HASH> 100644
--- a/examples/other/export_x3d.py
+++ b/examples/other/export_x3d.py
@@ -1,5 +1,5 @@
-"""Embed a 3D scene 
-in a webpage with 
+"""Embed a 3D scene
+in a webpage with
 x3dom and vtkplotter"""
 from vtkplotter import *
 
@@ -10,7 +10,7 @@ e.pointColors(ec[:,1]) # add dummy colors along y
 t = Text(__doc__, pos=(3e03,5.5e03,1e04), s=350)
 show(e, t)
 
-# This exports the scene and generates 2 files: 
+# This exports the scene and generates 2 files:
 # embryo.x3d and an example embryo.html to inspect in the browser
 exportWindow('embryo.x3d')
Removed trailing spaces in examples/other/export_x3d.py