excel - 有没有办法在发送之前对 Excel 文件进行加密？

Question

我正在寻求帮助，以便在通过电子邮件发送 Excel 工作簿之前自动对其进行加密。同事之前写过脚本，但已经离职了，因为我对此一无所知，我正在寻求帮助，看看是否有人可以指出在附加之前加密 Excel 文件的代码行的位置在我发送之前先查看草稿电子邮件。任何指示都会很好，谢谢!

我这里有代码

Sub Send_Row_Or_Rows_Attachment_2()
Working in 2000-2016
Dim OutApp As Object
Dim OutMail As Object
Dim rng As Range
Dim Ash As Worksheet
Dim Cws As Worksheet
Dim Rcount As Long
Dim Rnum As Long
Dim FilterRange As Range
Dim FieldNum As Integer
Dim NewWB As Workbook
Dim TempFilePath As String
Dim TempFileName As String
Dim FileExtStr As String
Dim FileFormatNum As Long

On Error GoTo cleanup
Set OutApp = CreateObject("Outlook.Application")

With Application
    .EnableEvents = False
    .ScreenUpdating = False
End With

'Set filter sheet, you can also use Sheets("MySheet")
Set Ash = ActiveSheet

'Set filter range and filter column (column with e-mail addresses)
Set FilterRange = Ash.Range("A1:N" & Ash.Rows.Count)
FieldNum = 2    'Filter column = B because the filter range start in column A

'Add a worksheet for the unique list and copy the unique list in A1
Set Cws = Worksheets.Add
FilterRange.Columns(FieldNum).AdvancedFilter _
        Action:=xlFilterCopy, _
        CopyToRange:=Cws.Range("A1"), _
        CriteriaRange:="", Unique:=True

'Count of the unique values + the header cell
Rcount = Application.WorksheetFunction.CountA(Cws.Columns(1))

'If there are unique values start the loop
If Rcount >= 2 Then
    For Rnum = 2 To Rcount

        'If the unique value is a mail address create a mail
        If Cws.Cells(Rnum, 1).Value Like "?*@?*.?*" Then

            'Filter the FilterRange on the FieldNum column
            FilterRange.AutoFilter Field:=FieldNum, _
                                   Criteria1:=Cws.Cells(Rnum, 1).Value

            'Copy the visible data in a new workbook
            With Ash.AutoFilter.Range
                On Error Resume Next
                Set rng = .SpecialCells(xlCellTypeVisible)
                On Error GoTo 0
            End With

            Set NewWB = Workbooks.Add(xlWBATWorksheet)

            rng.Copy
            With NewWB.Sheets(1)
                .Cells(1).PasteSpecial Paste:=8
                .Cells(1).PasteSpecial Paste:=xlPasteValues
                .Cells(1).PasteSpecial Paste:=xlPasteFormats
                .Cells(1).Select
                Application.CutCopyMode = False
            End With

            'Create a file name
            TempFilePath = Environ$("temp") & "\"
            TempFileName = "(for info, pls) " & Ash.Parent.Name _
                         & " " & Format(Now, "dd-mmm-yy")

            If Val(Application.Version) < 12 Then
                'You use Excel 97-2003
                FileExtStr = ".xls": FileFormatNum = -4143
            Else
                'You use Excel 2007-2016
                FileExtStr = ".xlsx": FileFormatNum = 51
            End If

            'Save, Mail, Close and Delete the file
            Set OutMail = OutApp.CreateItem(0)

            With NewWB
                .SaveAs TempFilePath & TempFileName _
                      & FileExtStr, FileFormat:=FileFormatNum
                On Error Resume Next
                With OutMail
                    .SentOnBehalfOfNAme = "<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="89eefce7e7ecfbc9ece4e8e0e5a7eae6e4" rel="noreferrer noopener nofollow">[email protected]</a>"
                    .to = Cws.Cells(Rnum, 1).Value
                    .Subject = "[FOR INFO ONLY][" & Format(Now, "dd-mmm-yy") & "]" & Space(1) & "<" & Range("E2").Value & ">"
                    .Attachments.Add NewWB.FullName
                    .Body = GetBoiler("C:\Users\Gunner\Desktop\bunny\bunny.txt")
                    .Display 'Or use .Sendcv
                End With
                On Error GoTo 0
                .Close savechanges:=False
            End With

            Set OutMail = Nothing
            Kill TempFilePath & TempFileName & FileExtStr
        End If

        'Close AutoFilter
        Ash.AutoFilterMode = False

    Next Rnum
End If

cleanup:
Set OutApp = Nothing
Application.DisplayAlerts = False
Cws.Delete
Application.DisplayAlerts = True

With Application
    .EnableEvents = True
    .ScreenUpdating = True
End With
End Sub

Function GetBoiler(ByVal sFile As String) As String
'Dick Kusleika
Dim fso As Object
Dim ts As Object
Set fso = CreateObject("Scripting.FileSystemObject")
Set ts = fso.GetFile(sFile).OpenAsTextStream(1, -2)
GetBoiler = ts.readall
ts.Close
End Function

Answer 1

保存文件时可以使用密码保护。这将加密文件，并且只有在提供正确的密码时才会解密。

    With NewWB
        .SaveAs TempFilePath & TempFileName _
              & FileExtStr, FileFormat:=FileFormatNum, _
              Password:="yourpassword", _                                
              WriteResPassword:="yourreadonlypassword"

请参阅documentation用于“另存为”命令。