EasyXLS

How to protect Excel file with password in VB6

'==============================================================================
' Tutorial 27
'
' This tutorial shows how to create an Excel file in VB6 and
' encrypt the Excel file by setting the password required for opening the file.
'==============================================================================
Click here to see the Excel file

VERSION 5.00
Begin VB.Form Form1 
    Caption         =   "Form1"
    ClientHeight    =   4590
    ClientLeft      =   60
    ClientTop       =   345
    ClientWidth     =   6885
    LinkTopic       =   "Form1"
    ScaleHeight     =   4590
    ScaleWidth      =   6885
    StartUpPosition =   3
    Begin VB.Label Label1 
        AutoSize        =   -1
        Height          =   100
        Left            =   120
        TabIndex        =   0
        Top             =   120
        Width           =   100
    End
End

Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False

Private Sub Form_Load()

    Me.Label1.Caption = "Tutorial 27" & vbCrLf & "---------------" & vbCrLf

    ' Create an instance of the class that exports Excel files
    Set workbook = CreateObject("EasyXLS.ExcelDocument")

    ' Create two worksheets
    workbook.easy_addWorksheet_2 ("First tab")
    workbook.easy_addWorksheet_2 ("Second tab")

    ' Set the password for protecting the Excel file when the file is open
    workbook.easy_getOptions().setPasswordToOpen ("password")

    ' Export Excel file
    Me.Label1.Caption = Me.Label1.Caption & vbCrLf & "Writing file C:\Samples\Tutorial27.xls"
    workbook.easy_WriteXLSFile ("C:\Samples\Tutorial27.xls")

    ' Confirm export of Excel file
    If workbook.easy_getError() = "" Then
        Me.Label1.Caption = Me.Label1.Caption & vbCrLf & "File successfully created."
    Else
        Me.Label1.Caption = Me.Label1.Caption & vbCrLf & "Error: " & workbook.easy_getError()
    End If

    ' Dispose memory
    workbook.Dispose
End Sub

Overloaded methods
For methods with same name but different parameters, only the first method overload retains the original name. Subsequent overloads are uniquely renamed by appending to the method name '_2', '_3', etc (method, method_2, method_3), an integer that corresponds to the order of declaration that can be found in EasyXLS.h, a file that comes with EasyXLS installation.

EasyXLS Excel components:

.NET
Excel Library for VB6
full COM+ version to import, export or convert Excel files
Excel Writer for VB6
COM+ version to create and export Excel files
Download EasyXLS™ Excel Component for VB6

File formats:

MS Excel 97 - 2003
MS Excel 2007 - 2010
MS Excel 2013
MS Excel 2016
MS Excel 2019
XLSX XLSM XLSB XLS
XML HTML CSV TXT