CSV file export in MATLAB adding new lines - matlab

Question

I'm trying to take in a complex csv file in MATLAB and edit/rearrange it. I used tableread to pull out the numerical data that I then manipulated. Afterwards I aimed to take the first 52 rows of text metadata, add three more rows then combine with the numerical data and output as a csv file.
However, I can't seem to find a way to work with the text metadata rows that doesn't ultimately add new lines between them when output.
e.g. this is how my csv outputs:
#HEADER
,,,,,,
Instrument, Data Processed Analysis
,,,,,
Version,1.3.1,1.25
,,,,
Created,Monday, August 16, 2021 3:13:38 PM
,,,
Filename,D5-116.NGXDP
,,,,,
When it should look like:
#HEADER
NGX, Data Processed Analysis
Version,1.3.1,1.25
Created,Monday, August 16, 2021 3:13:38 PM
Filename,D5-116.NGXDP
Here is my code:
`
close
clear
fileName = 'D5-116.NGXDP';
fileOut = fileName(1:end-6);
fileOut = append(fileOut, '.csv');
eEnergy = 1.602176634e-19; %electron energy in coulombs
resisTor = 1e11; %Resistor value for EM
%% Reading and Edit Mass Data - this is too hardcoded right now
T = readtable(fileName, 'FileType', 'text');
T = T{:,:}; %convert from table to matrix
dataOrg(:,1:3) = T(1087:1236, 1:3); %cycle:time:Ar
dataOrg(:,4) = T(935:1084, 3); %39
dataOrg(:,5) = T(783:932, 3); %38
dataOrg(:,6) = T(631:780, 3); %37
dataOrg(:,7) = T(479:628, 3); %36
dataOrg(:,7) = dataOrg(:,7) * eEnergy * resisTor; %36Ar - convert CPS to V
dataOrg(:,3:7) = dataOrg(:,3:7) * 1000; %Convert all to mV
%% Reading the metadata from the file
T2 = fopen(fileName);
metaData = fread(T2, '*char')'; %read content
fclose(T2);
results = strsplit(metaData, '\n'); %split the char data by entry spaces
metaNeat = results(:,1:52)'; %Takes the metadata prior to #collectors
metaNeat(end+1, 1) = {'Blocks, 1'}; %added data
metaNeat(end+1, 1) = {'Cycles, 150'}; %added data
metaNeat(end+1, 1) = {'Cycle, Time, 40, 39, 38, 37, 36'};
for n = 1:length(metaNeat) %scan each row, if there is a comma split them
if contains(metaNeat(n,1), ',') == 1
tempMeta = split(metaNeat(n,1), ',')';
metaNeat(n,1:size(tempMeta, 2)) = tempMeta;
clear tempMeta
end
end
outPut = metaNeat; %metadata section
outPut(end+1:(end+150), 1:7) = num2cell(dataOrg); %mass value section
writecell(outPut,fileOut,'Delimiter',',', 'FileType', 'text')
I'm sure there is a way to do this in three lines of course. My guess is that the strsplit function I'm using to separate the char cell into multiple rows is preserving the \n value. The added lines (e.g. Blocks, 1) do not show gaps in the csv file. Any tips or advice would be appreciated.
Thanks for your time,