1. Go to Core > Analysis > Reports
2. Click the Category dropdown and select Absence Analysis
3. Click Run  for Absence Analysis Summary 
3. Fill out the filters and Generate the report.
4. Export the report to Excel.
5. In Excel, rearrange the results in ascending order to see the students that have 0 absences for each Absence Type. The students that have a 0 for each have perfect attendance.