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VBA – Read Text File Line by Line

This tutorial will demonstrate how to read content from text files line by line with VBA.

We can either read the text file as an entire file, or line by line.

Read Text File Line by Line

Text in a text file is usually made up of several lines, separated by delimiters. These can be a comma (“,”), a comma with space (“, “), a semicolon (“;”), a  semicolon with space (“; “),  a space (“ “),  a tab (vbTab) or in rare cases any other character such as a tilde (~). The lines are normally separated by a line break (vbCRLF).

The easiest way to read a text file line by line into our Worksheet in VBA is to select the first cell where we want the text to be put, and then run the following code:

Sub ReadFile()
   Dim strFile As String, strLine As String
   strFile = "C:\Test\TestFile.txt"
   Open strFile For Input As #1
   Do Until EOF(1)
      Line Input #1, strLine
      ActiveCell = strLine
      ActiveCell.Offset(1, 0).Select
   Loop
   Close #1
End Sub

This will put each line of the text file into a single cell in Excel.

VBA ReadTextFile Excel

 

We can also read a text file in VBA by using the FileSystemObject.  In the code below we have used late binding with the File System Object.  You can also create a reference to it in your VBA project.  See here for more information.

Sub ReadTextFile()
  Dim strLine As String
  Dim FSO as Object
  Dim TSO As Object
  Set FSO = CreateObject("Scripting.FileSystemObject")
  Set TSO = FSO.OpenTextFile("C:\Test\TestFile.txt")
  Do While Not TSO.AtEndOfStream
     strLine = TSO.ReadLine
     ActiveCell = strLine
     ActiveCell.Offset(1, 0).Select
  Loop
  TSO.Close
  Set TSO = Nothing
  Set FSO = Nothing
End Sub

We can create a slightly more complicated loop if we want to separate the lines into cells by their delimiters.  Here we have used early binding in the code and declared the File System Object.

Sub ReadTextFileWithSeparators()
  Dim StrLine As String
  Dim FSO As New FileSystemObject
  Dim TSO As Object
  Dim StrLineElements As Variant
  Dim Index As Long
  Dim i As Long
  Dim Delimiter As String
  Set FSO = CreateObject("Scripting.FileSystemObject")
  Set TSO = FSO.OpenTextFile("C:\Test\TestFile.txt")
  Delimiter = ","
  Index = 1
  Do While TSO.AtEndOfStream = False
    StrLine = TSO.ReadLine
    StrLineElements = Split(StrLine, Delimiter)
    For i = LBound(StrLineElements) To UBound(StrLineElements)
       Cells(Index, i + 1).Value = StrLineElements(i)
    Next i
    Index = Index + 1
  Loop
  TSO.Close
  Set TSO = Nothing
  Set FSO = Nothing
End Sub

This will result in the lines being separated into individual cells in Excel as per the graphic below.

VBA ReadTextFile Delimiters

 

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