Microsoft ExcelでVBAを使用して、閉じたブックからの情報を読む

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 = "D:\testing"

' create list of workbooks in foldername' --- Comment

wbCount = 0

wbName = Dir(FolderName & "\" & "*.xls")

While wbName <> ""

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' --- Comment

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 = ""

If Right(wbPath, 1) <> "\" Then wbPath = wbPath & "\"

If Dir(wbPath & "\" & wbName) = "" Then Exit Function

arg = "'" & wbPath & "[" & wbName & "]" & _

wsName & "'!" & Range(cellRef).Address(True, True, xlR1C1)

On Error Resume Next

GetInfoFromClosedFile = ExecuteExcel4Macro(arg)

End Function