Hi Joseph, gizmo works pretty well for analyzing data, nice charts, etc. I'm not sure if execl export is on the list for development, but you could ask the developer who seems interested in hearing about new feature requests:
http://gismo.sourceforge.net/
http://moodle.org/mod/forum/discuss.php?d=16855&parent=85726
Attendance (plugin)
analyze use and logins
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