This data file documentation accompanies new data files for the High School Longitudinal Study of 2009 (HSLS:09) Postsecondary Education Transcript Study and Student Financial Aid Records Collection (PETS-SR). HSLS:09 follows a nationally representative sample of students who were ninth-graders in fall 2009 from high school into postsecondary education and the workforce. The PETS-SR data collection was conducted between spring 2017 and fall 2018, approximately 4 years after high school graduation for most of the cohort. These data allow researchers to examine postsecondary coursetaking experiences and financial aid awards for the subset of fall 2009 ninth-graders who enrolled in postsecondary education after high school. [For "High School Longitudinal Study of 2009 (HSLS:09) Postsecondary Education Transcript Study and Student Financial Aid Records Collection. Data File Documentation. Appendices. NCES 2020-004," see ED607373.]