使用VBA将特定文件夹中的多个Excel工作簿导入到单个工作表中

Question

Sub MergeExcels()

Dim Path, FName As String

Path = ""
FName = Dir(Path & "*.xlsx")

    Do While File <> ""
    Workbooks.Open File = Path & FName, ReadOnly:=True
    For Each Sheet In ActiveWorkbook.Sheets
    Sheet.Copy After:=ThisWorkbook.Sheets(1)
    Next Sheet
    Workbooks(File).Close
    File = Dir()
    Loop

End Sub

Answer 1

从VBA开始时，我建议您在模块顶部使用Option Explicit ，这将迫使您声明所有变量。

另一方面，当您声明变量Dim Path, FName As String仅FName将为String ， Path将为Variant类型。

为工作簿和工作表对象使用变量将帮助您清除代码。

此外，缩进还有助于提高代码的可读性。

Option Explicit
Sub MergeExcels()

    Dim Path As String, FName As String
    Dim wb As Workbook
    Dim ws As Worksheet

    Path = ""
    FName = Dir(Path & "*.xlsx")
    With ThisWorkbook
        Do While FName <> ""
            Set wb = Workbooks.Open(Path & FName, ReadOnly:=True)
            For Each ws In wb.Worksheets
                ws.Copy After:=.Sheets(.Sheets.Count)
            Next ws
            wb.Close SaveChanges:=False
            FName = Dir()
        Loop
    End With

End Sub

编辑：发现您的错误，您正在给FName文件名，但遍历FileName （始终为空）。

Answer 2

将一个文件夹中的多个Excel文件合并到一个工作表中：

Sub Basic_Example_1()
    Dim MyPath As String, FilesInPath As String
    Dim MyFiles() As String
    Dim SourceRcount As Long, Fnum As Long
    Dim mybook As Workbook, BaseWks As Worksheet
    Dim sourceRange As Range, destrange As Range
    Dim rnum As Long, CalcMode As Long

    'Fill in the path\folder where the files are
    MyPath = "C:\Users\Ron\test"

    'Add a slash at the end if the user forget it
    If Right(MyPath, 1) <> "\" Then
        MyPath = MyPath & "\"
    End If

    'If there are no Excel files in the folder exit the sub
    FilesInPath = Dir(MyPath & "*.xl*")
    If FilesInPath = "" Then
        MsgBox "No files found"
        Exit Sub
    End If

    'Fill the array(myFiles)with the list of Excel files in the folder
    Fnum = 0
    Do While FilesInPath <> ""
        Fnum = Fnum + 1
        ReDim Preserve MyFiles(1 To Fnum)
        MyFiles(Fnum) = FilesInPath
        FilesInPath = Dir()
    Loop

    'Change ScreenUpdating, Calculation and EnableEvents
    With Application
        CalcMode = .Calculation
        .Calculation = xlCalculationManual
        .ScreenUpdating = False
        .EnableEvents = False
    End With

    'Add a new workbook with one sheet
    Set BaseWks = Workbooks.Add(xlWBATWorksheet).Worksheets(1)
    rnum = 1

    'Loop through all files in the array(myFiles)
    If Fnum > 0 Then
        For Fnum = LBound(MyFiles) To UBound(MyFiles)
            Set mybook = Nothing
            On Error Resume Next
            Set mybook = Workbooks.Open(MyPath & MyFiles(Fnum))
            On Error GoTo 0

            If Not mybook Is Nothing Then

                On Error Resume Next

                With mybook.Worksheets(1)
                    Set sourceRange = .Range("A1:C1")
                End With

                If Err.Number > 0 Then
                    Err.Clear
                    Set sourceRange = Nothing
                Else
                    'if SourceRange use all columns then skip this file
                    If sourceRange.Columns.Count >= BaseWks.Columns.Count Then
                        Set sourceRange = Nothing
                    End If
                End If
                On Error GoTo 0

                If Not sourceRange Is Nothing Then

                    SourceRcount = sourceRange.Rows.Count

                    If rnum + SourceRcount >= BaseWks.Rows.Count Then
                        MsgBox "Sorry there are not enough rows in the sheet"
                        BaseWks.Columns.AutoFit
                        mybook.Close savechanges:=False
                        GoTo ExitTheSub
                    Else

                        'Copy the file name in column A
                        With sourceRange
                            BaseWks.cells(rnum, "A"). _
                                    Resize(.Rows.Count).Value = MyFiles(Fnum)
                        End With

                        'Set the destrange
                        Set destrange = BaseWks.Range("B" & rnum)

                        'we copy the values from the sourceRange to the destrange
                        With sourceRange
                            Set destrange = destrange. _
                                            Resize(.Rows.Count, .Columns.Count)
                        End With
                        destrange.Value = sourceRange.Value

                        rnum = rnum + SourceRcount
                    End If
                End If
                mybook.Close savechanges:=False
            End If

        Next Fnum
        BaseWks.Columns.AutoFit
    End If

ExitTheSub:
    'Restore ScreenUpdating, Calculation and EnableEvents
    With Application
        .ScreenUpdating = True
        .EnableEvents = True
        .Calculation = CalcMode
    End With
End Sub

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