Here are some Excel macros to quickly convert .xls files to .xlsx and .xlsm formats for newer versions of Microsoft Excel. Just paste this in your VBA window (in a module) in a .xlsm file, and use Excel to automatically do its own conversions. You then run either macro, which will ask you to choose a folder, and then all .xls files will be converted to .xlsx or .xlsm depending on whether they have macros or not...
Sub Copy_XLS_as_XLSX()
Convert_XLS_to_XLSX False
End Sub
Sub Delete_XLS_after_Copy_XLS_as_XLSX()
Convert_XLS_to_XLSX True
End Sub
Sub Convert_XLS_to_XLSX(ByVal deleteXLS As Boolean)
' Allow user to choose a folder, where all .xls files in that folder will be converted to
' .xlsx or .xlsm format, depending on whether they have macros or not...
Dim xDirect$, xFname$, InitialFoldr$
Dim wbk As New Workbook
Dim msg As Integer
InitialFoldr$ = "c:\temp\" 'Startup folder to begin searching from
If deleteXLS = True Then 'as user if they really want to delete .xls files
msg = MsgBox("Do you want to delete all .xls files after you have created a copy in .xlsx format? If you are not sure, click NO!", vbYesNo, "Ready to delete .xls files?")
End If
If msg = vbNo Then 'user doesn't want to delete files...
deleteXLS = False
End If
With Application.FileDialog(msoFileDialogFolderPicker)
.InitialFileName = Application.DefaultFilePath & "\"
.Title = "Please select a folder containing the .xls files you want to convert..."
.InitialFileName = InitialFoldr$
.Show
If .SelectedItems.Count <> 0 Then
xDirect$ = .SelectedItems(1) & "\"
xFname$ = Dir(xDirect$, 7)
Do While xFname$ <> "" 'loop through all filenames in folder
If Right(xFname$, 4) = ".xls" Then 'only convert .xls files
Application.DisplayAlerts = False 'turn off any unwanted messages
Set wbk = Workbooks.Open(Filename:=xDirect$ & xFname$)
If wbk.HasVBProject Then ' convert Excel files containing Macros
wbk.SaveAs Filename:=xDirect$ & xFname$ & "m", _
FileFormat:=xlOpenXMLWorkbookMacroEnabled
Else ' convert standard Excel files
wbk.SaveAs Filename:=xDirect$ & xFname$ & "x", _
FileFormat:=xlOpenXMLWorkbook
End If
wbk.Close SaveChanges:=False
If deleteXLS = True Then 'delete existing xls files if desired
With New FileSystemObject 'include Excel reference to Microsoft Scripting.Runtime library... or this won't work... Go to Tools>References in the VBA editing window
If .FileExists(xDirect$ & xFname$) Then
.DeleteFile xDirect$ & xFname$
End If
End With
End If
Application.DisplayAlerts = True 'turn messages back on
End If
xFname$ = Dir ' get next filename in folder
Loop
End If
End With
xRow = MsgBox("All .xls files have now been converted.", , "Finished!")
End Sub