如果Excel文件的打开密码忘记了，且密码是7位数以内的数字，可用以下步骤解开：
新开一Excel，同时按Alt和F11，进入VBA界面，点菜单上的插入，模块，在新出来的窗口粘贴一下代码：
Sub crack()
Dim i As Long
Dim FileName As String
Application.ScreenUpdating = False
i = 1
FileName = Application.GetOpenFilename("Excel文件（*.xls & *.xlsx）,*.xls;*.xlsx", , "VBA破解")
FileName = Right(FileName, Len(FileName) - InStrRev(FileName, "\"))
line2:
On Error GoTo line1
Do While True
Workbooks.Open FileName, , , , i
MsgBox "Password is " & i
Exit Sub
Loop
line1:
i = i + 1
Resume line2
Application.ScreenUpdating = True
End Sub然后直接在此界面下按F5运行此宏如果有字母，稍微复杂些，道理是类似的。太长的密码，基本解不开了。若果还有读写密码，且与打开密码一样，将Workbooks.Open FileName, , , , i 改为Workbooks.Open FileName, , , , i, i
