今天，有同事提出想批量修改文件名，规则比较简单，在第五位后加“-”即可，
上网没找到相关工具，就自己做了个excel，用宏代码修改。
代码如下：
Private Sub CommandButton1_Click()
Dim varFileList As Variant
MsgBox "选择要重命名文件所在的文件夹,点击确定！"
With Application.FileDialog(msoFileDialogFolderPicker)
.AllowMultiSelect = False
.Show
If .SelectedItems.Count = 0 Then Exit Sub '未选择文件夹
renamepath = .SelectedItems(1)
If Right(renamepath, 1) <> "" Then
renamepath = renamepath + ""
End If
End With
'获取文件夹中的所有文件列表
varFileList = fcnGetFileList(renamepath)
If Not IsArray(varFileList) Then
MsgBox "未找到文件", vbInformation
Exit Sub
End If
For l = 0 To UBound(varFileList)
Dim fs
Set fs = CreateObject("Scripting.FileSystemObject")
oName = renamepath & CStr(varFileList(l))
If fs.FileExists(oName) And Len(CStr(varFileList(l))) > 5 Then
nName = renamepath & Left(CStr(varFileList(l)), 5) & "-" & Mid(CStr(varFileList(l)), 6)
Name oName As nName
End If
Next l
MsgBox "全部修改成功！哈哈", vbInformation
End Sub
Private Function fcnGetFileList(ByVal strPath As String, Optional strFilter As String) As Variant
' 将文件列表放到数组
Dim f As String
Dim i As Integer
Dim FileList() As String
If strFilter = "" Then strFilter = "*.*"
Select Case Right(strPath, 1)
Case "", "/"
strPath = Left(strPath, Len(strPath) - 1)
End Select
ReDim Preserve FileList(0)
f = Dir(strPath & "" & strFilter)
Do While Len(f) > 0
ReDim Preserve FileList(i) As String
FileList(i) = f
i = i + 1
f = Dir()
Loop
If FileList(0) <> Empty Then
fcnGetFileList = FileList
Else
fcnGetFileList = False
End If
End Function