This study analyses business students’ decision to use Excel or not to complete assignments in a finance course at a Mexican University, and the affect on exam performance. The study adds to current literature in that there is a lack of such research on finance students in developing nations. After quantitative data was collected, qualitative information was obtained via interviews with some of the students to understand more about their decisions. The quantitative data showed that there was no effect on student exam performance between using Excel or not in completing assignments, and completing all assignments, regardless of whether Excel was used or not, improved the students’ exam performance. The qualitative information showed that students had different responses to having a choice of using Excel, and different approaches to using it. The implications for Finance instructors in Mexico and other developing nations are discussed.