First and foremost, don't panic. CSV is just the acronym (comma separated values) for a type of simple spreadsheet...

https://docs.google.com/spreadsheets/d/e/2PACX-1vSbm4oft5GsSjSl96xRyomItqZLR7J2hFEQG0fVAcs3nVR1TETyrqVmKtN_vaViy0_p6B...

Net Profit Margin is equal to net income or profit is generated expressed as a percentage of revenue.