school timetable schedule

Hi, I'm looking for a solution to display course timetables for classes on a school website.

The school in question generates the timetables now with the software called Untis (http://www.school-timetabling.com/). This software is able to output the timetables as HTML, as XML and as CSV. What I need is to display these timetables (for individual classes or even for individual students or teachers) within Drupal.

What would be the best approach? Using the Data and/or Schema module? Or the Date + Views + Calendar module?

Does anybody have experience in producing anything likewise?

So I've been looking around at some school timetabling solutions, particularly the Open Source solutions, and I'm wondering about a possible integration module with Drupal.

There is an Open Source school timetable scheduler called FET which has a very basic GUI that allows you to take a set of scheduling parameters, and it creates an output xml file with the school schedule inside it.