This file oulines the data corresponding to the publication entitled "The effects of irradiation dose and storage time following treatment on the viscoelastic properties of decellularised porcine super flexor tendon" There are 6 data files: 1. Figure 1a - Barchart data for the viscoelastic parameter "E0" at time points t=0 and t=12 months 2. Figure 1b - Barchart data for the viscoelastic parameter "E1" at time points t=0 and t=12 months 3. Table 1 - A table of means and standard deviations for all viscoelastic parameetrs derived at time points t=0 and t=12 months 4. List of derived Maxwell-Wiechert viscoelastic parameters - A full listing of alliscoelastic parameters derived for each specimen at time points t=0 and t=12 months 5. Biomechanical for all sterilisation groups at time t=0 - A zip folder containing all the measured experimental data at t=0, including load, extension, stress and strain. Subfolders exist such that data is structured per test group investigated and then per sample in each test group 6. Biomechanical for all sterilisation groups at time t=12 months - A zip folder containing all the measured experimental data at t=12 months, including load, extension, stress and strain. Subfolders exist such that data is structured per test group investigated and then per sample in each test group