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using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
class Program
static void Main()
//The program reads the content of a text file and write its words into one column in a new file.
List<string> TextList = new List<string>();//List to store the clear content
string Content = ""; //String to stote file content
//String delimiter characters
char[] separator = new char[] { ' ', '?', '!', '.', '(', ')', '=', ',', ':', ';', '#', '&', '-', '+', '`', '~', '"', '*', '_', '—' };
//When it is only a file name, then the file should be in the bin directory. Otherwise it should be written the full path to the file.
//Windows-1251 is character encoding, designed to cover languages that use the Cyrillic script such as Bulgarian language and other languages.
StreamReader reader = new StreamReader("podIgoto.txt", Encoding.GetEncoding("Windows-1251"));
using (reader)
Content = reader.ReadToEnd();//Reads the whole file
string[] text = Content.Split(separator);//Split separates strings by delimiter characters.
foreach (var item in text)
if (item != "")
TextList.Add(item); //Add the substring to the list.
StreamWriter writeOutputFile = new StreamWriter("text.txt");//Write the words in a new file, called "text.txt"(in bin folder).
writeOutputFile.WriteLine("Word");//Insert new line "Word"- the name of the column
//Write the contents from our List by replacing the original file content
using (writeOutputFile)
foreach (string line in TextList)
//ToLower() makes all letters small.
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