For those who do not have access to the intended timetable but still wish to try this tool, two example pages have been provided. These are from my own personal timetable, during my final year at Lboro.
To use these, just open one of the files in your favourite browser, then follow the instructions from step 2.
You can open these files with any web browser of your choosing.
If you're on a Mac, then you'll be able to open the .webarchive files instead. These are a bit better as they include styling.