最近朋友有一个批量处理大量excel的需求，需要将每个excel中的每个sheet里面的指定列隐藏，指定列锁定，还要加密。加起来总共有1万多张sheet，如果一张张sheet的人工操作，那真是得无聊死了。于是我帮忙找了一下办法。在网上找了各种例子，然后拼接起来，完美完成任务。
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Sub LoopAllExcelFilesInFolder()
'PURPOSE: To loop through all Excel files in a user specified folder and perform a set task on them
'SOURCE: www.TheSpreadsheetGuru.com
Dim wb As Workbook
Dim myPath As String
Dim myFile As String
Dim myExtension As String
Dim FldrPicker As FileDialog
'Optimize Macro Speed
Application.ScreenUpdating = False
Application.EnableEvents = False
Application.Calculation = xlCalculationManual
'Retrieve Target Folder Path From User
Set FldrPicker = Application.FileDialog(msoFileDialogFolderPicker)
With FldrPicker
.Title = "Select A Target Folder"
.AllowMultiSelect = False
If .Show <> -1 Then GoTo NextCode
myPath = .SelectedItems(1) & "\"
End With
'In Case of Cancel
NextCode:
myPath = myPath
If myPath = "" Then GoTo ResetSettings
'Target File Extension (must include wildcard "*")
myExtension = "*.xls*"
'Target Path with Ending Extention
myFile = Dir(myPath & myExtension)
'Loop through each Excel file in folder
Do While myFile <> ""
'Set variable equal to opened workbook
Set wb = Workbooks.Open(Filename:=myPath & myFile)
'Ensure Workbook has opened before moving on to next line of code
DoEvents
'隐藏指定列，解锁指定列，设置锁定密码
For Each sht In wb.Sheets
sht.Columns("H:K").Hidden = True
sht.Range("B:C").Locked = False
sht.Protect "1234"
sht.Protect AllowInsertingRows:=True
Next
'Save and Close Workbook
wb.Close SaveChanges:=True
'Ensure Workbook has closed before moving on to next line of code
DoEvents
'Get next file name
myFile = Dir
Loop
'Message Box when tasks are completed
MsgBox "Task Complete!"
ResetSettings:
'Reset Macro Optimization Settings
Application.EnableEvents = True
Application.Calculation = xlCalculationAutomatic
Application.ScreenUpdating = True
End Sub
