Read information from a closed workbook
2004-10-14 Import & Export 1 181
With the macros below you can read values and text from cells in closed workbooks. The example macros shows how you can read the value from cell A1 in Sheet1 in all workbooks in a given folder.
Sub ReadDataFromAllWorkbooksInFolder() Dim FolderName As String, wbName As String, r As Long, cValue As Variant Dim wbList() As String, wbCount As Integer, i As Integer FolderName = "C:\Foldername" ' create list of workbooks in foldername wbCount = 0 wbName = Dir(FolderName & "\" & "*.xls") While wbName <> vbNullString wbCount = wbCount + 1 ReDim Preserve wbList(1 To wbCount) wbList(wbCount) = wbName wbName = Dir Wend If wbCount = 0 Then Exit Sub ' get values from each workbook r = 0 Workbooks.Add For i = 1 To wbCount r = r + 1 cValue = GetInfoFromClosedFile(FolderName, wbList(i), "Sheet1", "A1") Cells(r, 1).Formula = wbList(i) Cells(r, 2).Formula = cValue Next i End Sub Private Function GetInfoFromClosedFile(ByVal wbPath As String, wbName As String, wsName As String, cellRef As String) As Variant Dim arg As String GetInfoFromClosedFile = vbNullString If Right(wbPath, 1) <> "\" Then wbPath = wbPath & "\" If Dir(wbPath & wbName) = vbNullString Then Exit Function arg = "'" & wbPath & "[" & wbName & "]" & wsName & "'!" & Range(cellRef).Address(True, True, xlR1C1) On Error Resume Next GetInfoFromClosedFile = ExecuteExcel4Macro(arg) End FunctionThis method has some limitations on how many cells you can return information from since the Excel4-macro creates links to the closed workbook. You can use a similar example using ADO if you need to retrieve a lot of data from a closed workbook.
It is often much easier to open the workbook and get the information from it. If you set the Application.ScreenUpdating to False, the user will probably not notice that the workbook is opened and closed again.
Sub GetDataFromClosedWorkbook() Dim wb As Workbook Application.ScreenUpdating = False ' turn off the screen updating Set wb = Workbooks.Open("C:\Foldername\Filename.xls", True, True) ' open the source workbook, read only With ThisWorkbook.Worksheets("TargetSheetName") ' read data from the source workbook .Range("A10").Formula = wb.Worksheets("SourceSheetName").Range("A10").Formula .Range("A11").Formula = wb.Worksheets("SourceSheetName").Range("A20").Formula .Range("A12").Formula = wb.Worksheets("SourceSheetName").Range("A30").Formula .Range("A13").Formula = wb.Worksheets("SourceSheetName").Range("A40").Formula End With wb.Close False ' close the source workbook without saving any changes Set wb = Nothing ' free memory Application.ScreenUpdating = True ' turn on the screen updating End SubHere is another alternative:
Sub CopyFromClosedWB(strSourceWB As String, _ strSourceWS As String, strSourceRange As String, rngTarget As Range) ' copies information from a closed workbook, no input validation! ' use like this to copy information to the active worksheet: ' CopyFromClosedWB "C:\Foldername\Filename.xls", "Sheet1", "A1:D100", Range("A1") Dim wb As Workbook Application.ScreenUpdating = False ' turn off the screen updating Application.StatusBar = "Copying data from " & strSourceWB & "..." On Error Resume Next ' ignore errors ' open the source workbook, read only Set wb = Workbooks.Open(strSourceWB, True, True) On Error GoTo 0 ' stop when errors occur If Not wb Is Nothing Then ' opened the workbook On Error Resume Next ' ignore errors With wb.Worksheets(strSourceWS).Range(strSourceRange) .Copy rngTarget End With On Error GoTo 0 ' stop when errors occur wb.Close False ' close the source workbook without saving changes Set wb = Nothing ' free memory End If Application.StatusBar = False ' reset status bar Application.ScreenUpdating = True ' turn on the screen updating End Sub Sub TestCopyFromClosedWB() CopyFromClosedWB "C:\Foldername\Filename.xls", "SheetName", "A1:D10", Range("A1") End Sub
This post has 1 comment: