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Use VBA to read text from a file

The following simple routine opens a text file, reads each line into a variable, prints it to the Immediate window (press Ctrl+G to see the immediate window in the IDE), then closes the file.

Sub ReadAsciiFile()

    Dim sFileName As String
    Dim iFileNum As Integer
    Dim sBuf As String

    ' edit this:
    sFileName = "C:\temp\test.txt"

    ' does the file exist?  simpleminded test:
    If Len(Dir$(sFileName)) = 0 Then
        Exit Sub
    End If

    iFileNum = FreeFile()
    Open sFileName For Input As iFileNum

    Do While Not EOF(iFileNum)
        Line Input #iFileNum, sBuf
        ' now you have the next line of the file in sBuf
        ' do something useful:
        Debug.Print sBuf

    ' close the file
    Close iFileNum

End Sub

See How do I use VBA code in PowerPoint? to learn how to use this example code.

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Use VBA to read text from a file
Last update 07 June, 2011