下面是单个xls转换成xlsx的步骤，相信大家都知道
1. 点击“文件”，然后选择“另存为”，并保存到桌面
2.然后点击“保存类型”，选择“Excel 97-2003工作簿”，然后点“保存
但是我有100个文件，能不能批量操作？
答：当然可以，只要用VBA代码就能按上面的操作自动执行100次，帮你批量将.xls转化成.xlsx。
具体操作请看下方动图
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VBA代码如下（复制即可）：
'***********访问当前文件夹下所有子文件夹及文件,
Dim iFile(1 To 100000) As String
Dim count As Integer
Sub xls2xlsx()
iPath = ThisWorkbook.Path
On Error Resume Next
count = 0
zdir iPath
For i = 1 To count
If iFile(i) Like "*.xls" And iFile(i) <> ThisWorkbook.FullName Then
MyFile = iFile(i)
FilePath = Replace(MyFile, ".xls", ".xlsx")
If Dir(FilePath, 16) = Empty Then
Set WBookOther = Workbooks.Open(MyFile)
Application.ScreenUpdating = False
ActiveWorkbook.SaveAs Filename:=FilePath, FileFormat:=xlOpenXMLWorkbook, CreateBackup:=False
WBookOther.Close SaveChanges:=False '解决不能close 文件问题
Application.ScreenUpdating = True
End If
End If
Next
End Sub
Sub zdir(p) '访问当前文件夹下所有子文件夹及文件
Set fs = CreateObject("scripting.filesystemobject")
For Each f In fs.GetFolder(p).Files
If f <> ThisWorkbook.FullName Then count = count + 1: iFile(count) = f
Next
For Each m In fs.GetFolder(p).SubFolders
zdir m
Next
End Sub
