Ensure all excel files and the script are in the same folder.
The name of the timetable excel sheet should be timetable.xls
The name of the input excel sheet with the student registration details should be student.xls

In each excel sheet, the first line should contain the column headings followed by the data. Use the existing example excel files as a reference.

Right click and click open in terminal.

To run the script enter:

	python clashes.py > out.txt
 
The list of all clashes are stored in a file out.txt which automatically gets created in the same folder. If it already exists, the file is overwritten.