d9780 A CSV file is a plain text file. It's not an archive, so it can't be extracted. You can rename it to "something.txt" from "something.csv" and open it with any text editor.
For example, BeauTyXT app from Accrescend App Store from GrapheneOS App Store should open this file just fine if you rename the file extension from .csv to .txt
Since it's a CSV (coma-separated values) file, the more visually appealing way to open it would be using any spreadsheet capable software, like LibreOffice or MS Excel. This file format uses comas as delimiters for columns, hence the recommendation.