Microsoft Excel Macros
 

VBA for Excel Lesson 10: VBA Macros Security and Protection in Excel

This is an excerpt from Pierre Leclerc (www.excel-vba.com)

Note: If you are using Excel 2007 see lesson 10 here

If you send a workbook with macros to a colleague and he can not get them to work it is probably because his security setting is at "High" . Tell him how to change his level of security. From the menu bar he selects "Tools/Macros/Security"and follows the instructions  to set the level at "Medium".

From then on each time he opens a workbook that contains macros the following dialog window will appear.

VBA for Excel Security macros enable window

Adopt the same attitude as you have with documents attached to Emails. If you know the origin of the file you may enable the macros if not click on "Disable Macros" and you are fully protected. You can look at the workbook but the VBA procedures (macros) are not operational. You can go to the Visual Basic Editor to take a look at the macros. If nothing looks suspicious close the workbook and re-open it enabling the macros.

Password Protecting the code

As an Excel-VBA Developer you might want to protect your code so that nobody else may modify it. In the VBE editor go to "Tools/VBAProject Properties/Protection" . Check the box and submit a password. Make sure that you save the password somewhere that you will remember. If ever you loose the password for an important workbook you can always buy a program on the Internet that will allow you to view the code even if it is password protected.

Remember that passwords are like any locks, they only keep the honest people out.

Go to the next section
Section 2 : Excel VBA (Macros) Vocabulary

The following is for Excel 2007 users

Microsoft Excel Macros
 

VBA for Excel Lesson 10: VBA Macros Security and Protection in Excel

Special note for users of Excel 2007: See how to install the Visual Basic Editor from your Office CD and set the security level of your Excel.

If you send a workbook with macros to a colleague and he can not get them to work it is probably because his security setting is at "High" . Tell him how to change his level of security by going to the "Developer" ribbon, clicking on "Macro Security", selecting "Macro Settings and checkink the second level "Disable all Macros with Notification" and you are set.

From then on each time you open a workbook that contains macros a temporary status bar appears above the grid in Excel:

Click on "Options" and the following dialog window will appear.

VBA for Excel Security macros enable window

Adopt the same attitude as you have with documents attached to Emails. If you know the origin of the file you may enable the macros if not click on "Disable Macros" and you are fully protected. You can look at the workbook but the VBA procedures (macros) are not operational. You can go to the Visual Basic Editor to take a look at the macros. If nothing looks suspicious close the workbook and re-open it enabling the macros.

Password Protecting the code

As an Excel-VBA Developer you might want to protect your code so that nobody else may modify it. In the VBE editor go to "Tools/VBAProject Properties/Protection" . Check the box and submit a password. Make sure that you save the password somewhere that you will remember. If ever you loose the password for an important workbook you can always buy a program on the Internet that will allow you to view the code even if it is password protected.

Remember that passwords are like any locks, they only keep the honest people out.

Go to the next section
Section 2 : Excel VBA (Macros) Vocabulary

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