Open in Python using "load"
https://docs.scipy.org/doc/numpy-1.9.3/reference/generated/numpy.load.html#numpy.load

fig 2-a and 3-a
data_MC_D_ntraj1e6_eq_h0.2_J0.0.npz

fig 2-b and 3-b
data_MC_D_ntraj1e6_h0.2_J0.1_Tb1.2.npz

fig 2-c and 3-c
data_MC_ND_ntraj1e6_h0.2_J0.1_simple_init_Tb1.2.npz

fig 2-d and 3-d 
data_MC_D_ntraj1e6_J0.2_Tb1.2h1_0.4_tdep.npz

fig 2-e and 3-e 
data_MC_D_ntraj1e6_h0.2_J0.1_Tb1.2_non_th.npz

fig 4
data_MC_ND_ntraj1e6_h0.2_J0.1_simple_init_Tb1.2_super.npz