hello
have you tried to work with tables - using readtable ?
filename = '0-3000.txt';
T = readtable(filename);
C = table2cell(T);
gives :
T =
3×6 table
Var1 Var2 Var3 Var4 Var5 Var6
__________ ________ _____ ____ _____ ____
02/06/2021 10:54:08 {'Z'} 9 {'z'} 8
02/06/2021 10:54:08 {'Z'} 9 {'z'} 9
02/06/2021 10:54:08 {'Z'} 9 {'z'} 9
C =
3×6 cell array
{[02/06/2021]} {[10:54:08]} {'Z'} {[9]} {'z'} {[8]}
{[02/06/2021]} {[10:54:08]} {'Z'} {[9]} {'z'} {[9]}
{[02/06/2021]} {[10:54:08]} {'Z'} {[9]} {'z'} {[9]}