Tunka-Rex is a digital antenna array for measuring the radio emission from air-showers, induced by high-energy cosmic rays. The array started operation in 2012 with 18 antennas and had significantly developed over the years, finishing measurements in 2019 with 63 antennas and upgraded data acquisition. Analysis and processing of the collected data is a complex procedure which contains a number of steps (monitoring of state of the array, low-level filtration, quality cuts, reconstruction of air-shower parameters etc.). We give an overview of software developed for these tasks and our experience gained during the work with Tunka-Rex data. The legacy of software and data is discussed in the frame of the FAIR (Findability -Accessibility -Interoperability -Reuse) concepts.