Export data cell array to several csv files

I have the following script to export data cell array (read and output netCDF files), to excel format. It works great, but I want to export the data for separated csv files instead export them to several excel sheet, the script is:

files = dir('*.nc4') ;
nfiles = length(files) ;
P = cell(nfiles,1) ; % precipitation of all files
date = cell(nfiles,2) ;
time = cell(nfiles,2) ;
for i = 1:nfiles
    %%Read dat
    date{i,1} = ncreadatt(files(i).name,'/','HDF5_GLOBAL.BeginDate')  ;
    date{i,2} = ncreadatt(files(i).name,'/','HDF5_GLOBAL.EndDate')  ;
    %%Read time 
    time{i,1} = ncreadatt(files(i).name,'/','HDF5_GLOBAL.BeginTime')  ;
    time{i,2} = ncreadatt(files(i).name,'/','HDF5_GLOBAL.EndTime')  ;
    %%REad precipitation 
    P{i} = ncread(files(i).name,'precipitation') ;
end

myfile = 'myfile.xlsx' ;
for i = 1:nfiles
    xlswrite(myfile,P{i},i)
end

it's coded by KSSV.

I changed the last part:

myfile = 'myfile.xlsx' ;
for i = 1:nfiles
    xlswrite(myfile,P{i},i)
end

to the following:

fid = fopen('test.csv', 'w') ;
 fprintf(fid, '%s,', P{i}) ;
 fprintf(fid, '%s\n', P{i}) ;
 fclose(fid) ;

   dlmwrite('test.csv', P{i}, '-append') ;

%and

% myfile = '1.xlsx' ;
for i = 1:nfiles
%     csvwrite (myfile,P{i},i)

      csvwrite('csvlist.dat',P{i})
  type csvlist.dat
  end

The result, didn't work out!

I appreciate your help and time!