In "Magnetska svojstva Cu (II) spojeva s L-homoserinom.xlsx" the following data is given: In the columns from A to D CW EPR experimental data for sample Cu_hser_phen 4H20 is presented. In the columns from E to H CW EPR experimental data for sample Cu_hser_phen 5H20 is presented. Columns A, C, E and G represents magnetic field in Gauss units and the B, D, F and H represent EPR intensity in arb. u. Conditions of the each measurments were following: data in columns A, B, E and F were taken at the temperature of 78 K, data in columns C, D, G and H were taken at the temperature of 296 K, modulation amplitude for the all datasets was 5 G, attenuation for the all datasets was 60 dB, reciever gain used to gather data in colums A and B was 40 dB, reciever gain used to gather data in colums C and D was 50 dB, reciever gain used to gather data in colums E, F, G and was 60 dB, field width used for data presented in columns A, B, C and D was 2000 G, field width used for data presented in columns E, F, G and H was 2200 G, aqusition time for data in all columns was set to 84 seconds. In 4H20.zip and 5H20.zip are given also Matlab EasySpin files (.m) which we used for simulation of the spectra. There is also an Origin files (.opj) which we used for graphical display of spectra.