You use the Visual Basic Editor to edit the macros attached to a workbook. On the Developer tab, in the Code group, click Macros, and in the Macro name box, click the macro you want to edit.
If you haven't edited a macro before, the first two sections in this article will get you started.
In this article
Show the Developer tab
The commands for editing and running macros are located on the Developer tab, which is hidden by default. To show the Developer tab, do the following:
Click File, and then click Options.
Click the Customize Ribbon category.
Under Customize the Ribbon, in the Main Tabs list, click Developer, and then click OK.
Change macro security settings
To edit and run macros, you set your security level to temporarily enable them:
On the Developer tab, in the Code group, click Macro Security.
Under Macro Settings, click Enable all macros (not recommended, potentially dangerous code can run), and then click OK.
Note To help prevent potentially dangerous code from running, we recommend that you return to any of the settings that disable all macros after you finish working with macros.
Edit the macro
On the Developer tab, in the Code group, click Macros.
In the Macro name box, click the macro that you want to edit.
Click Edit. The Visual Basic Editor appears.
Tip To get help while you are working in the Visual Basic Editor, on the Help menu, click Microsoft Visual Basic Help, or press F1.