IN LABVIEW PLEASE! Programming script will not help.

Create a VI which appends an array containing a time value and a numeric input to the end of a spreadsheet file, whose path is specified by the user. The time value should be recorded in seconds, relative to the time the VI began running. The VI should run continuously, saving the most recent input value to the spreadsheet file each time the user presses a Save button on the front panel. End execution when a stop button is pressed.