Australian PISA reports and data files are publicly available here.
Data files are valuable to those who would like to undertake their own analyses and exploration of PISA data. The available data files include the student achievement data as well as the student and school questionnaire data in SPSS and SAS format.
Prior to undertaking any analyses, it is highly recommended data users become familiar with the methodology and technical manuals. Please take the time to review the Technical reports and the PISA data analysis manual.