Saving live information to excel file every half hour

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Timer with specific format

nf() -> Processing.org/reference/nf_.html Forum.Processing.org/two/discussion/16001/add-0-s-to-date-time-in-the-filename-with-saveframe#Item_3 SimpleDateFormat -> Docs.Oracle.com/en/java/javase/11/docs/api/java.base/java/text/SimpleDateFormat.html Forum.Processing.org/two/discussion/10067/how-to-prevent-file-overwriting#Item_3