FYI, here is the code
% Load table
serial_numbers = struc_file.serial_number;
file_names = struc_file.file_name;
date_time = struc_file.event_date_time;
ppv = struc_file.ppv;
% Fix Serial Number format, removing Carriage Return
for n = 1:length(serial_numbers)
sss = serial_numbers{n};
ss2 = sss(1:4);
serial_numbers{n} = ss2;
end
% The following works without date_time
the_data2 = [serial_numbers,file_names,date_time,ppv]; %date_time,ppv];
set(handles.file_table,'Data',the_data2);