Trouble opening a .dat file

I'm trying to open a .dat file and tried solutions previously posted.

This solution at least recognized 6 columns and 112 lines, but the output is gibberish

filename = 'CH01.dat';

opt = detectImportOptions(filename, 'filetype', 'text');

t = readtable(filename, opt);

By gibberish, I mean like this:

Z�@ ���S`@33333�@z �\���K�@ �@ 4@ Z�@ ���S

I can't attach the file because the format is not supported.

[Stephen23]

"I can't attach the file because the format is not supported."

Either change the file extension to .txt or zip it up, then upload it.