VBA循环浏览目录中的文件，另存为csv到另一个目录中，如果文件存在则跳过

Question

我有一些代码循环遍历一个文件夹中的一堆文件，在每个文件上运行一个宏，然后将它们另存为.csv文件在另一个文件夹中。如果目标csv文件夹为空，则该过程运行良好。我想做的是如果.csv文件已经存在，请跳过该过程。下面的代码存在问题，即Filename = Dir（）返回一个空值，如果存在.csv文件，则循环结束。那么，如何继续遍历第一个文件夹中的其他文件？

Sub ProcessFiles()
Dim Filename, Pathname, strFileExists As String
Dim wb As Workbook

Application.ScreenUpdating = False

Pathname = ActiveWorkbook.Path & "\Files\"
Filename = Dir(Pathname & "*.xlsx")
Do While Filename <> ""
    Set wb = Workbooks.Open(Pathname & Filename)
    length = Len(ActiveWorkbook.Name)
    Name = Left(ActiveWorkbook.Name, length - 5)
    CSVName = ActiveWorkbook.Path & "\CSV Files\" & Name & ".csv"
    strFileExists = Dir(CSVName)

    If strFileExists = "" Then
        Transform wb 'Run Transform function
        wb.SaveAs Filename:=CSVName, FileFormat:=xlCSVMSDOS, CreateBackup:=False
        wb.Close SaveChanges:=False
        Filename = Dir()
    Else
        wb.Close SaveChanges:=False
        Filename = Dir()
    End If
Loop
End Sub

Answer 1

我认为braX是正确的：问题是您使用Dir两次。这似乎为我工作：

Sub ProcessFiles()
    Dim Filename, Pathname, strFileExists As String
    Dim wb As Workbook
    Dim IntFileNumber As Integer
    Dim IntCounter01 As Integer
    Dim Length As Byte
    Dim Name As String
    Dim CSVName As String

    Application.ScreenUpdating = False

    Pathname = ActiveWorkbook.Path & "\Files\"
    Filename = Dir(Pathname & "*.xlsx")

    Do While Filename <> ""
        Set wb = Workbooks.Open(Pathname & Filename)
        Length = Len(ActiveWorkbook.Name)
        Name = Left(ActiveWorkbook.Name, Length - 5)
        CSVName = ActiveWorkbook.Path & "\CSV Files\" & Name & ".csv"
        strFileExists = Dir(CSVName)


        If strFileExists = "" Then
            Transform wb 'Run Transform function
            wb.SaveAs Filename:=CSVName, FileFormat:=xlCSVMSDOS, CreateBackup:=False
            wb.Close SaveChanges:=False
            Filename = Dir(Pathname & "*.xlsx")
            IntFileNumber = IntFileNumber + 1
            For IntCounter01 = 1 To IntFileNumber
                Filename = Dir()
            Next
        Else
            wb.Close SaveChanges:=False
            Filename = Dir(Pathname & "*.xlsx")
            IntFileNumber = IntFileNumber + 1
            For IntCounter01 = 1 To IntFileNumber
                Filename = Dir()
            Next
        End If
    Loop

End Sub

基本上，我会重设文件名并根据需要重播Dir的次数以到达所需文件。