In this thesis, we report the findings of designing data export functionality in Uppsala University Psychosocial Care Program (U-CARE) at Uppsala University. The aim of this thesis was to explore the design space for generic data export functionality in data centric clinical research applications for data analysis. This was attained by the construction and evaluation of a prototype for a data-centric clinical research application. For this purpose Action Design Research (ADR) was conducted, situated in the domain of clinical research. The results consist of a set of design principles expressing key aspects needed to address when designing data export functionality. The artifacts derived from the development and evaluation process each one constitutes an example of how to design for data export functionality of this kind.