We measured the time courses of interhemispheric facilitation and inhibition with a conditioning-test paired-pulse magnetic stimulation paradigm in 12 subjects. There are four spread sheets in the excel file. The first sheet (subject) listed the information about the subjects we tested. The stimulus intensities used in the experiments were also listed. The second sheet (rough) listed the result of a time course tested with interstimulus interval set at 1 ms resolution. The other two sheets (facilitation precise and inhibition precise) showed the results testing interhemispheric facilitation and inhibition with interstimulus intervals set at 0.1 ms resolution.