Importar datos desde un archivo de texto (ADO) utilizando VBA en Microsoft Excel

Sub GetTextFileData(strSQL As String, strFolder As String, rngTargetCell As Range)

' example: GetTextFileData "SELECT * FROM filename.txt", _

"C:\FolderName", Range("A3")

' example: GetTextFileData "SELECT * FROM filename.txt WHERE fieldname = 'criteria'", _

"C:\FolderName", Range("A3")

Dim cn As ADODB.Connection, rs As ADODB.Recordset, f As Integer

If rngTargetCell Is Nothing Then Exit Sub

Set cn = New ADODB.Connection

On Error Resume Next

cn.Open "Driver={Microsoft Text Driver (.txt; .csv)};" & _

"Dbq=" & strFolder & ";" & _

"Extensions=asc,csv,tab,txt;"

On Error GoTo 0

If cn.State <> adStateOpen Then Exit Sub

Set rs = New ADODB.Recordset

On Error Resume Next

rs.Open strSQL, cn, adOpenForwardOnly, adLockReadOnly, adCmdText

On Error GoTo 0

If rs.State <> adStateOpen Then

cn.Close

Set cn = Nothing

Exit Sub

End If

' the field headings

For f = 0 To rs.Fields.Count - 1

rngTargetCell.Offset(0, f).Formula = rs.Fields(f).Name

Next f

rngTargetCell.Offset(1, 0).CopyFromRecordset rs ' works in Excel 2000 or later

'RS2WS rs, rngTargetCell ' works in Excel 97 or earlier

rs.Close

Set rs = Nothing

cn.Close

Set cn = Nothing

End Sub

Sub TestGetTextFileData()

Application.ScreenUpdating = False

Workbooks.Add

GetTextFileData "SELECT * FROM filename.txt", "C:\FolderName", Range("A3")

'    GetTextFileData "SELECT * FROM filename.txt WHERE fieldname = 'criteria'", _

"C:\FolderName", Range("A3")

Columns("A:IV").AutoFit

ActiveWorkbook.Saved = True

End Sub