How do we save command window output to a text file?

How do we save command window output to a text file? The professor does not want us to use fprintf function to write data to text file. I want the text file name to be 'DailySummaries'. I have done this currently but it does not save it as a .txt file

        diary on
        diary('DailySummaries')
        disp(strcat('Day',{' '},num2str(data(i).elapsedtime(3)),{' '},' Healthy People = ',{' '},num2str(data(i).healthy)))
        disp(strcat('Day',{' '},num2str(data(i).elapsedtime(3)),{' '},' Infected People = ',{' '},num2str(data(i).infected)))
        disp(strcat('Day',{' '},num2str(data(i).elapsedtime(3)),{' '},' Sick People = ',{' '},num2str(data(i).sick)))
        disp(strcat('Day',{' '},num2str(data(i).elapsedtime(3)),{' '},' Recovered People = ',{' '},num2str(data(i).recovered)))
        diary off

Answer 1

[Walter Roberson]

diary does create a text file. However, diary() does not automatically add any file extension, so your File Explorer does not know how to open the file.

        diary('DailySummaries.txt')

[Zayd Islam]

great realised this just now thank you

[navanit dubey]

sir please see to it too https://in.mathworks.com/matlabcentral/answers/782028-how-to-save-the-matrix-value-of-bmp-image