The file contains the two datasets with temporal evolution of the electric current and voltages and spatiotemporal evolution of the electron number density and reduced electric field. Due to their size, the data are saved in binary hdf5 file. The file can be opened using any program that supports opening hdf5 files, such as HDF Viewer, Origin Pro, Matlab, or various libraries in Python. The current and voltage data are stored in a table where the first column is the time, the second, third and fourth columns are the applied, gap and memory voltages, respectively, and the last column is the electric current. The spatiotemporal evolution of the field is given in as a three-column form table in which for a given time in the first column all axial positions are varied in the second column, and the third and fourth columns contain the number density of electrons and the reduced electric field at the given time and position.

Dataset1: 'Figure2_a'
Size: 8546
Structured array:
column 1: 't [s]': H5T_IEEE_F64LE (double)
column 2: 'applied voltage [V]': H5T_IEEE_F64LE (double)
column 3: 'gap voltage [V]': H5T_IEEE_F64LE (double)
column 4: 'memory voltage [V]': H5T_IEEE_F64LE (double)
column 5: 'current [A]': H5T_IEEE_F64LE (double)

Dataset2: 'Figure2_b-c':
Size: 264528
Structured array:
column 1: 't [s]': H5T_IEEE_F64LE (double)
column 2: 'z [m]': H5T_IEEE_F64LE (double)
column 3: '[e] [m^-3]': H5T_IEEE_F64LE (double)
column 4: 'reduced electric field [Td]': H5T_IEEE_F64LE (double)

Note that the same data zoomed into different time ranges was presented in Figures 3 and 12.