excel加密密码怎么改

1.如何更改excel文件的密码

设置的什么密码？如果是工作表保护密码的话试试这个：打开文件-----工具---宏----录制新宏------输入名字如：123-----停止录制（这样得到一个空宏）工具---宏----宏------选123，----点编辑按钮---删除窗口中的所有字符替换为下面的内容（呵呵，代码不是我写的，感谢写这段代码的人，非常好用）为免输错，你可以直接复制：Public Sub AllInternalPasswords() ' Breaks worksheet and workbook structure passwords. Bob McCormick ' probably originator of base code algorithm modified for coverage ' of workbook structure / windows passwords and for multiple passwords ' ' Norman Harker and JE McGimpsey 27-Dec-2002 (Version 1.1) ' Modified 2003-Apr-04 by JEM: All msgs to constants, and ' eliminate one Exit Sub (Version 1.1.1) ' Reveals hashed passwords NOT original passwords Const DBLSPACE As String = vbNewLine & vbNewLine Const AUTHORS As String = DBLSPACE & vbNewLine & _ "Adapted from Bob McCormick base code by" & _ "Norman Harker and JE McGimpsey" Const HEADER As String = "AllInternalPasswords User Message" Const VERSION As String = DBLSPACE & "Version 1.1.1 2003-Apr-04" Const REPBACK As String = DBLSPACE & "Please report failure " & _ "to the microsoft.public.excel.programming newsgroup." Const ALLCLEAR As String = DBLSPACE & "The workbook should " & _ "now be free of all password protection, so make sure you:" & _ DBLSPACE & "SAVE IT NOW!" & DBLSPACE & "and also" & _ DBLSPACE & "BACKUP!, BACKUP!!, BACKUP!!!" & _ DBLSPACE & "Also, remember that the password was " & _ "put there for a reason. Don't stuff up crucial formulas " & _ "or data." & DBLSPACE & "Access and use of some data " & _ "may be an offense. If in doubt, don't." Const MSGNOPWORDS1 As String = "There were no passwords on " & _ "sheets, or workbook structure or windows." & AUTHORS & VERSION Const MSGNOPWORDS2 As String = "There was no protection to " & _ "workbook structure or windows." & DBLSPACE & _ "Proceeding to unprotect sheets." & AUTHORS & VERSION Const MSGTAKETIME As String = "After pressing OK button this " & _ "will take some time." & DBLSPACE & "Amount of time " & _ "depends on how many different passwords, the " & _ "passwords, and your computer's specification." & DBLSPACE & _ "Just be patient! Make me a coffee!" & AUTHORS & VERSION Const MSGPWORDFOUND1 As String = "You had a Worksheet " & _ "Structure or Windows Password set." & DBLSPACE & _ "The password found was: " & DBLSPACE & "$$" & DBLSPACE & _ "Note it down for potential future use in other workbooks by " & _ "the same person who set this password." & DBLSPACE & _ "Now to check and clear other passwords." & AUTHORS & VERSION Const MSGPWORDFOUND2 As String = "You had a Worksheet " & _ "password set." & DBLSPACE & "The password found was: " & _ DBLSPACE & "$$" & DBLSPACE & "Note it down for potential " & _ "future use in other workbooks by same person who " & _ "set this password." & DBLSPACE & "Now to check and clear " & _ "other passwords." & AUTHORS & VERSION Const MSGONLYONE As String = "Only structure / windows " & _ "protected with the password that was just found." & _ ALLCLEAR & AUTHORS & VERSION & REPBACK Dim w1 As Worksheet, w2 As Worksheet Dim i As Integer, j As Integer, k As Integer, l As Integer Dim m As Integer, n As Integer, i1 As Integer, i2 As Integer Dim i3 As Integer, i4 As Integer, i5 As Integer, i6 As Integer Dim PWord1 As String Dim ShTag As Boolean, WinTag As Boolean Application.ScreenUpdating = False With ActiveWorkbook WinTag = .ProtectStructure Or .ProtectWindows End With ShTag = False For Each w1 In Worksheets ShTag = ShTag Or w1.ProtectContents Next w1 If Not ShTag And Not WinTag Then MsgBox MSGNOPWORDS1, vbInformation, HEADER Exit Sub End If MsgBox MSGTAKETIME, vbInformation, HEADER If Not WinTag Then MsgBox MSGNOPWORDS2, vbInformation, HEADER Else On Error Resume Next Do 'dummy do loop For i = 65 To 66: For j = 65 To 66: For k = 65 To 66 For l = 65 To 66: For m = 65 To 66: For i1 = 65 To 66 For i2 = 65 To 66: For i3 = 65 To 66: For i4 = 65 To 66 For i5 = 65 To 66: For i6 = 65 To 66: For n = 32 To 126 With ActiveWorkbook .Unprotect Chr(i) & Chr(j) & Chr(k) & _ Chr(l) & Chr(m) & Chr(i1) & Chr(i2) & _ Chr(i3) & Chr(i4) & Chr(i5) & Chr(i6) 。

2.EXcel如何设置修改密码?

当然可以设置！

对于2007版或更高版本的EXCEL，点击左上角的微软图标，再点击“另存为”命令。弹出如下图所示窗口，点“工具”后面的小三角，选“常规选项”，弹出的密码输入窗口中，输入“修改权限密码”后“确定”，再次输入这个密码确认即可。

对于2003版或以前版本的EXCEL，点击“工具”菜单下的“选项”命令，在里面找下设置“修改权限密码”的地方（我机子没装2003版，具体地方忘记了），按要求设置即可。

3.怎么取消excel的保护密码

1、打开您需要撤销保护密码的Excel文件； 2、依次点击菜单栏上的工具---宏----录制新宏，输入宏名字如：ab; 3、停止录制（这样得到一个空宏）； 4、依次点击菜单栏上的工具---宏----宏，选ab，点编辑按钮； 5、删除窗口中的所有字符（只有几个），替换为以下内容； Public Sub 工作表保护密码（） Const DBLSPACE As String = vbNewLine & vbNewLine Const AUTHORS As String = DBLSPACE & vbNewLine & _ "作者：eric" Const HEADER As String = "工作表保护密码" Const VERSION As String = DBLSPACE & "版本 Version 1.1.1" Const REPBACK As String = DBLSPACE & "" Const ZHENGLI As String = DBLSPACE & " eric" Const ALLCLEAR As String = DBLSPACE & "该工作簿中的工作表密码保护已全部解除。

" & DBLSPACE & "请记得重新设置密码" _ & DBLSPACE & "注意：此方法仅用于遗忘密码使用。" Const MSGNOPWORDS1 As String = "该文件工作表中没有加密" Const MSGNOPWORDS2 As String = "该文件工作表中没有加密2" Const MSGTAKETIME As String = "请耐心等候！" & DBLSPACE & "按确定开始回复" Const MSGPWORDFOUND1 As String = "密码重新组合为：" & DBLSPACE & "$$" & DBLSPACE & _ "如果该文件工作表有不同密码，将搜索下一组密码并修改清除" Const MSGPWORDFOUND2 As String = "密码重新组合为：" & DBLSPACE & "$$" & DBLSPACE & _ "如果该文件工作表有不同密码，将搜索下一组密码并解除" Const MSGONLYONE As String = "确保为唯一的？" Dim w1 As Worksheet, w2 As Worksheet Dim i As Integer, j As Integer, k As Integer, l As Integer Dim m As Integer, n As Integer, i1 As Integer, i2 As Integer Dim i3 As Integer, i4 As Integer, i5 As Integer, i6 As Integer Dim PWord1 As String Dim ShTag As Boolean, WinTag As Boolean Application.ScreenUpdating = False With ActiveWorkbook WinTag = .ProtectStructure Or .ProtectWindows End With ShTag = False For Each w1 In Worksheets ShTag = ShTag Or w1.ProtectContents Next w1 If Not ShTag And Not WinTag Then MsgBox MSGNOPWORDS1, vbInformation, HEADER Exit Sub End If MsgBox MSGTAKETIME, vbInformation, HEADER If Not WinTag Then Else On Error Resume Next Do 'dummy do loop For i = 65 To 66: For j = 65 To 66: For k = 65 To 66 For l = 65 To 66: For m = 65 To 66: For i1 = 65 To 66 For i2 = 65 To 66: For i3 = 65 To 66: For i4 = 65 To 66 For i5 = 65 To 66: For i6 = 65 To 66: For n = 32 To 126 With ActiveWorkbook .Unprotect Chr(i) & Chr(j) & Chr(k) & _ Chr(l) & Chr(m) & Chr(i1) & Chr(i2) & _ Chr(i3) & Chr(i4) & Chr(i5) & Chr(i6) & Chr(n) If .ProtectStructure = False And _ .ProtectWindows = False Then PWord1 = Chr(i) & Chr(j) & Chr(k) & Chr(l) & _ Chr(m) & Chr(i1) & Chr(i2) & Chr(i3) & _ Chr(i4) & Chr(i5) & Chr(i6) & Chr(n) MsgBox Application.Substitute(MSGPWORDFOUND1, _ "$$", PWord1), vbInformation, HEADER Exit Do 'Bypass all for。

nexts End If End With Next: Next: Next: Next: Next: Next Next: Next: Next: Next: Next: Next Loop Until True On Error GoTo 0 End If If WinTag And Not ShTag Then MsgBox MSGONLYONE, vbInformation, HEADER Exit Sub End If On Error Resume Next For Each w1 In Worksheets 'Attempt clearance with PWord1 w1.Unprotect PWord1 Next w1 On Error GoTo 0 ShTag = False For Each w1 In Worksheets 'Checks for all clear ShTag triggered to 1 if not. ShTag = ShTag Or w1.ProtectContents Next w1 If ShTag Then For Each w1 In Worksheets With w1 If .ProtectContents Then On Error Resume Next Do 'Dummy do loop For i = 65 To 66: For j = 65 To 66: For k = 65 To 66 For l = 65 To 66: For m = 65 To 66: For i1 = 65 To 66 For i2 = 65 To 66: For i3 = 65 To 66: For i4 = 65 To 66 For i5 = 65 To 66: For i6 = 65 To 66: For n = 32 To 126 .Unprotect Chr(i) & Chr(j) & Chr(k) & _ Chr(l) & Chr(m) & Chr(i1) & Chr(i2) & Chr(i3) & _ Chr(i4) & Chr(i5) & Chr(i6) & Chr(n) If Not .ProtectContents Then PWord1 = Chr(i) & Chr(j) & Chr(k) & Chr(l) & _ Chr(m) & Chr(i1) & Chr(i2) & Chr(i3) & _ Chr(i4) & Chr(i5) & Chr(i6) & Chr(n) MsgBox Application.Substitute(MSGPWORDFOUND2, _ "$$", PWord1), vbInformation, HEADER 'leverage finding Pword by trying on other sheets For Each w2 In Worksheets w2.Unprotect PWord1 Next w2 Exit Do 'Bypass all for。nexts End If Next: Next: Next: Next: Next: Next Next: Next: Next: Next: Next: Next Loop Until True On Error GoTo 0 End If End With Next w1 End If MsgBox ALLCLEAR & AUTHORS & VERSION & REPBACK & ZHENGLI, vbInformation, HEADER End Sub 6、关闭编辑窗口； 7、依次点击菜单栏上的工具---宏-----宏，选AllInternalPasswords，运行，确定两次，等。

4.excel表格如何设置密码

EXCEL的安全设置有三类：

一、工作簿设密：

（一）目的：为了工作簿文件不让他人打开或修改。

（二）操作步骤：“工具”菜单-“选项”命令-“安全性”标签内设置 打开权限、修改权限（是否为只读）。

二、保护工作表：

（一）目的：保护工作表上的各个对象不被用户访问或修改（比如公式单元格）。

（二）操作步骤：

1、首先锁定需要被保护的单元格范围，“格式”菜单-“单元格格式”命令-“保护”标签，点选“锁定”复选框。

2、“工具”菜单-“保护”命令-“保护工作表”子命令，为工作表设置保护密码。

三、保护工作簿：

（一）目的：对工作簿的窗口以及结构进行保护。

（二）操作步骤：

1、首先将不希望他人看到的工作表进行工作表隐藏：激活需隐藏工作表，“格式”菜单-“工作表”命令-“隐藏”子命令。

2、“工具”菜单-“保护”命令-“保护工作簿”子命令，设置保护工作簿密码，并点选“结构”复选框。

综上所述，第二类安全设置可以做到防止他人进行表的编辑（仍可读），第一、三类可以做到非创建者不能打开的目的。