How to skip the first line from a text file

One of my colleague had a requirement regarding this how to skip the first line from the data which was in a text file so i am writing this

 string strLine = string.Empty;

 string strFile = @"c:\Achdemo.txt";
ArrayList arr = new ArrayList();
StreamReader sr = new StreamReader(strFile);
while (sr.Peek() >= 0)
{
strFile = sr.ReadLine();
arr.Add(strFile);
}
for (int i = 0; i < arr.Count; i++)
{
if (i > 0)
{
string s1 = arr[i].ToString();
}
}


If any better options or solutions please let me know..