You have a choice. You cannot fetch non adjacent columns as a csv, therefore you either have to make two calls to the spreadsheet, or you can set up a helper sheet on the spreadsheet to show just these two columns.
Use the web component GET block, and collect the output in responseContent in the GotText event block. This assumes your spreadsheet is set to "anyone with the link can view".
Trang.aia is nice.
It works off a Google sheet, downloads it as csv,
and builds a list of country names for a country list picker,
and looks up stats for that selected country by SelectionIndex.
For the benefit of readers, here’s a summary:
I would have done the clipping of the bottom and top of the table in a loop,
removing index 225 until the length of list is 224, then removing index 1 nine times.