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copied!<p>A litle ugly but is a start.</p> <p>//c#</p> <pre><code> OpenFileDialog dialog = new OpenFileDialog(); dialog.ShowDialog(); string filePath = dialog.FileName; //in this list we store the match of 5 years. List<string[]> fiveYears = new List<string[]>(); //open a reader. StreamReader tr = new StreamReader(filePath); //reaing 1° line. string line=tr.ReadLine(); while (line != null && line != "" && line != "\n") { //split de line by tabs. string[] lineByTabs = line.Split('\t'); //if the second term equals '5 years' if (lineByTabs[1].Equals("5 years")) { //change from 5 years to 1 month, and to a lonan of 100. lineByTabs[1] = "1 month"; lineByTabs[2] = "100"; fiveYears.Add(lineByTabs); } line = tr.ReadLine(); } //close reader tr.Close(); //open the file and apend lines. TextWriter tw = new StreamWriter(filePath, true); foreach (string[] lines in fiveYears) { tw.WriteLine(lines[0] + "\t" + lines[1] + "\t" + lines[2]); } tw.Close(); } </code></pre> <p>'vb.net</p> <pre><code> Dim dialog As OpenFileDialog = New OpenFileDialog Dim filePath, line As String Dim fiveYears As List(Of String()) = New List(Of String()) Dim lineByTabs As String() Dim tr As StreamReader Dim tw As TextWriter dialog.ShowDialog() filePath = dialog.FileName tr = New StreamReader(filePath) line = tr.ReadLine() While Not line = "" lineByTabs = line.Split(vbTab) If lineByTabs(1).Equals("5 years") Then lineByTabs(1) = "1 month" lineByTabs(2) = "100" fiveYears.Add(lineByTabs) End If line = tr.ReadLine() End While tr.Close() tw = New StreamWriter(filePath, True) For Each lines As String() In fiveYears tw.WriteLine(lines(0) + vbTab + lines(1) + vbTab + lines(2)) Next tw.Close() </code></pre> <p>hope it helps</p> <p><strong>note:</strong> flie has to end in a new line. and folows the given format (3 colums).</p>

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