@Andythefirst -
Hi there! Totally possible and probably a few different ways to do it. As a beginner, I'd do a recurrence trigger, then get the items on the SP list (filtering either with an OData filter, or Condition step in Flow), and then add those lines to your Excel sheet (I think the rows will need to be in a table...not sure if that matters to you or not).
Also, I'd think about adding a column in your SP list to indicate if the row has already been copied or not. Then add a step in your Flow to change that field once the row is in Excel. There's probably a better way to do that, but that's the way I know 🙂
Good luck! Keep us posted.
-Ed-
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