creating a file and inserting comma separated data in loop

Hello, I have a function which open up a folder, read all the data to variables in loop ( open one file at the time, read all the data from it ), and I want to write all extracted data in new CSV file.

 function quote = readfolder()

    list = dir(strcat('G:\results\')
    no_files = size(list)
    disp(no_files)

     for i= 1:no_files(1,1)-2
        url  = strcat('G:\results\','FILE_NR=', '.', int2str(i), '.html') ;
        html = fileread(url) ;
        % url, html, its just from previous modifications

        % below - just reading variables from my html file.
        Summary = regexp( html, 'Summary:.*?">([^<]+)', 'tokens', 'once' )
        ti_ultimate_osc__value = regexp( html, 'Oscillator <.*?id="open_9">([\-+\d\.]+)', 'tokens', 'once' )
        ma200_simple = regexp( html, 'MA200.*?[\-+\d\.]+.*?">([^<]+)', 'tokens', 'once' )

        % This is where I should write to file I guess.

     end
end

I want to create (or overwrite old) CSV file before the loop begins; and insert new data Summary, ti_ultimate_osc__value, ma200_simple (one line in CSV for each html file in folder while loop reads the files).

I made several tries, no good results, please help move in a right direction

PS: I deleted bits from my file to make it short. Everything should still be fine.