Problem opening ho file

Hello, I encountered an issue when attempting to open a .ho file in Collin (a level from the Xbox 360 version of WALL-E). Nothing happens. The level won't open, and I tried opening others, but they didn't open either. I wouldn't say that my hardware is weak. As far as I understand, the editor only works with the Wii version, as was the case with DynamicGeometry? Or am I doing something wrong?