Reading and writing/editing to a text file

use something like this: private void ReadInfo(string filename) { StreamReader sr = new StreamReader(filename); string tmpStr = sr.ReadLine(); string[] tsa = new string[3]; uName = new string[5]; uAge = new string[5]; uLocation = new string[5]; int i = 0; while (tmpStr != null) { tsa = tmpStr.Split(' '); uName[i] = tsa[0]; uAge[i] = tsa[1]; uLocation[i] = tsa[2]; i ++; tmpStr = sr.ReadLine(); } sr.Close(); } for writing: private void WriteInfo(string filename) { StreamWriter sw = new StreamWriter(filename); string[] tsa = new string[3]; for (int i =0; i < 5; i ++) { tsa[0] = uName[i]; tsa[1] = uAge[i]; tsa[2] = uLocation[i]; sw.WriteLine(String.Join(" ", tsa)); } sw.Close(); }