Rather than storing lots of 1x4 cell arrays inside a 166x1 cell array, your data should probably be stored as one single 166x4 cell array. That would also make your task much easier. Lets try using some fake data:
data_table = cell(3,1);
data_table{1} = {'A', '[1 25]', 'double', ""};
data_table{2} = {'AF', '[1 1]', 'double', 1};
data_table{3} = {'B', '[0 0]', 'double', "Hi"};
Which probably shold be stored like this (or in a table):
C = vertcat(data_table{:})
Which in turn makes saving the data easier:
writecell(C,'myfile.xlsx')
Do not use a loop to create lots of separate tables.
