Loading dat files using Import Data tool giving strange characters

I have a data downloaded from https://pds-ppi.igpp.ucla.edu/search/view/?f=yes&id=pds://PPI/JNO-J_SW-JAD-3-CALIBRATED-V1.0/DATA/2017/2017273/ELECTRONS/JAD_L30_LRS_ELC_ANY_CNT_2017273_V03&o=1, whose components I wanted to import. I generally use the ‘Import Data’ tool available. But when I do this for the dat file in question, I am getting strange characters liked these:

I looked the solutions at https://in.mathworks.com/matlabcentral/answers/79885-how-to-read-tabular-data-from-dat-files-into-matlab, but it did not help me.

Any help will be greatly appreciated.