Basics

Using CsvHelper is really easy. It's default settings are setup for the most common scenarios.

Here is a little setup data.

Actors.csv:

Id,FirstName,LastName  
1,Arnold,Schwarzenegger  
2,Matt,Damon  
3,Christian,Bale

Actor.cs (custom class object that represents an actor):

public class Actor
{
    public int Id { get; set; }
    public string FirstName { get; set; }
    public string LastName { get; set; }
}

Reading

Reading the CSV file using CsvReader:

var csv = new CsvReader( new StreamReader( "Actors.csv" ) );
var actorsList = csv.GetRecords<Actor>();

Writing

Writing to a CSV file.

using (var csv = new CsvWriter( new StreamWriter( "Actors.csv" ) )) 
{
    csv.WriteRecords( actorsList );
}