Keymap - excel Navigation not working?

Hi everyone,

Is this link sample http://dhtmlx.com/docs/products/dhtmlxGrid/samples/15_navigation/02_pro_keymap_excel.html working ?

I tried “Left-Arrow / Right-Arrow - navigate to the cell in the previous or next cell and select it”, but nothing happened?

please, let me know
Thank’s

The linked sample works well.
Please, try to navigate with the arrow keys and opening the editor of the cell with the “f2” key.