使用c#将CSV文件读入数组

I am trying to create a code that will pull in, read, and separate a csv file. It has four columns with no titles. I've been searching for hours online and no one really seems to have the answer so I'm hoping that someone here can. After it is read in I need it to be able to be pulled very sepecifically as it is part of design. Thanks ahead of time! I am trying to create a code that will pull in,