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Use system default editor to open a CSV file

Imports System.Diagnostics Public Class Tester     Public Shared Sub Main         Dim csvFile As String = My.Application.Info.DirectoryPath & "\Test.csv"         Dim outFile As IO.StreamWriter = My.Computer.FileSystem.OpenTextFileWriter(csvFile, False)         outFile.WriteLine("Column 1, Column 2, Column 3")         outFile.WriteLine("1.23, 4.56, 7.89")         outFile.WriteLine("3.21, 6.54, 9.87")         outFile.Close()         Process.Start(csvFile)     End Sub End Class