l am working on battleship game(Matlab). How can i save the scores in the text file?

here are the instructions:

Recording the score: For each session (current user), after each game, and before starting a new game (or before ending the session), record the game stats in a file named firstName_lastName_results.txt: - Who won/lost - Number of moves (only if the computer wins) - Difficulty level - Overall score between the user and the computer. If there are previous games recorded in the file, the current games score should be appended at the end of the file. Sample text file: User Computer No. Of Moves Level Overall Score ---- -------- ------------ ----- ------------- L W 23 EP 0 - 1 W L - MS 1 1 L W 19 WD 1 - 2