The main thing that the Macro does is separate the Blink, Jaw Clench and optional user data markers.
They look like this in the file:
2021-02-11 11:02:07.605,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,/muse/elements/blink
If you were to directly graph the CSV without any processing, it probably wouldn't look right.
Also, the CSV data has each brainwave as separate electrodes (TP9,AF7,AF8,TP10), so when the macro runs it creates a new sheet with a single average for each brainwave, making the graph much more readable.
.. Or you can just use the online charts and it does all this for instantly
![Wink ;-)](./images/smilies/icon_e_wink.gif)