You haven't even made an attempt. Please at least try. As long as you want to discard all of the samples except for the very last, it is trivial. You also need to change that while loop with the error wired to the termination terminal. That loop will never stop unless you press the stop button on the toolbar and you never want to do that.
You were doing this originally with the Write to Spreadsheet inside the loop. If you get an error with this and continuous acquisition mode, you'll probably have to adopt a producer/consumer design pattern. Just look at File>New... to see the various standard designs.
