diff --git a/2-handson/1_tour_ui/1-JupyterLab-interface.json b/2-handson/1_tour_ui/1-JupyterLab-interface.ipynb
similarity index 100%
rename from 2-handson/1_tour_ui/1-JupyterLab-interface.json
rename to 2-handson/1_tour_ui/1-JupyterLab-interface.ipynb
diff --git a/2-handson/CoEC_Interactive High-Performance Computing with JupyterLab__handson.pptx b/2-handson/CoEC_Interactive High-Performance Computing with JupyterLab__handson.pptx
index 36eee3d41ab3373986288b41a6f876d87d1c7a5b..4dc0595f10906bb7d7d6b4da174228e69f765772 100644
Binary files a/2-handson/CoEC_Interactive High-Performance Computing with JupyterLab__handson.pptx and b/2-handson/CoEC_Interactive High-Performance Computing with JupyterLab__handson.pptx differ