Power Query M formula language standard library: Csv.Document

Csv.Document(source as any, optional columns as any, optional delimiter as any, optional extraValues as nullable number, optional encoding as nullable number) as table

let
  Source = Csv.Document(
    File.Contents("P:\ath\to\file.csv"),
      [
        Delimiter  = ","  ,
        Columns    =  4   ,
        Encoding   = 65001,
        QuoteStyle = QuoteStyle.None
      ]
  )
…