Remove 1st & 2nd lines in 1st file, and 1st line in 2nd file. I want the headers to be the first line after the script runs!

Question

I have two files that look like this (Notepad++):
In the first file, which has a date as a name and always ends in 'COV', I want to remove the 1st & 2nd lines.  All lines end in LF (LineFeed).  In the 2nd file, which has a date as a name and always ends in 'RSK', I want to remove the 1st line. 
Basically I want only the headers.  I'm working with the code below.  I've tried several different iterations of
reader.ReadLine().Skip(1);
reader.ReadLine().Skip(2);
reader.ReadLine().Skip(3);
It never really gives me what I want, so I can't tell what's going on here.  I guess I'm missing something simple, but I don't know what.  Any ideas, anyone?
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Diagnostics;
namespace ConsoleApplication1
class Program
static void Main(string[] args)
string sourceDirectory = @"C:\Users\rshuell\Desktop\Downloads\Files";
try
var txtFiles = Directory.EnumerateFiles(sourceDirectory);
foreach (string currentFile in txtFiles)
if (currentFile.Contains("COV"))
var items1 = new LinkedList<string>();
using (var reader = new StreamReader(currentFile))
reader.ReadLine().Skip(2); // skip 2lines
string line;
while ((line = reader.ReadLine()) != null)
items1.AddLast(line.Replace("\"", ""));
File.WriteAllLines(currentFile, items1);
else
var items2 = new LinkedList<string>();
using (var reader = new StreamReader(currentFile))
reader.ReadLine().Skip(1); // skip one line
string line;
while ((line = reader.ReadLine()) != null)
items2.AddLast(line.Replace("\"", ""));
File.WriteAllLines(currentFile, items2);
catch (Exception ex)
Knowledge is the only thing that I can give you, and still retain, and we are both better off for it.

Answer 1

Call the ReadLine() twice if you want to skip the first two lines. Each call results in a single line being read:
static void Main(string[] args)
string sourceDirectory = @"C:\Users\rshuell\Desktop\Downloads\Files";
try
var txtFiles = Directory.EnumerateFiles(sourceDirectory);
foreach (string currentFile in txtFiles)
if (currentFile.Contains("COV"))
var items1 = new LinkedList<string>();
using (var reader = new StreamReader(currentFile))
reader.ReadLine(); //read line 1
reader.ReadLine(); //read line 2
string line;
while ((line = reader.ReadLine()) != null)
items1.AddLast(line.Replace("\"", ""));
File.WriteAllLines(currentFile, items1);
else
var items2 = new LinkedList<string>();
using (var reader = new StreamReader(currentFile))
reader.ReadLine(); // skip one line
string line;
while ((line = reader.ReadLine()) != null)
items2.AddLast(line.Replace("\"", ""));
File.WriteAllLines(currentFile, items2);
catch (Exception ex)
Calling the Skip method on the already read string returned by the ReadLine() method won't help you at all here. By the time you call the Skip method the line has already been read from the file. You must call the ReadLine() method for a new line being read.
Hope that helps.
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