If you don't enable them, then the security setting on the workbook is set to a high enough level that the macros (and doing anything with the macros) are disabled.

For instance, when you first open the workbook, you may be notified that it contains macros and asked if you want to enable them. There are any number of reasons why the options would not be available, but they all boil down to security settings for the workbook. She wonders why they are disabled and how she can make them available. The Developer tab should now be visible on the ribbon.Micky noted that when she opens a particular workbook in Excel and displays the Developer tab on the ribbon, some of the tools are disabled (Macros, Visual Basic Editor, Record Macro). At the right side of the dialog box make sure a check mark appears in the checkbox to the left of the Developer option.Using the Customize the Ribbon drop-down list (right side of the dialog box, near the top), choose Main Tabs.Click Customize Ribbon at the left side of the dialog box.Excel displays the Excel Options dialog box. If you are using Excel 2010 or a later version, the steps are different: Ensure the Show Developer Tab in Ribbon check box is selected.

The Popular options of the Excel Options dialog box. Make sure that Popular is selected at the left side of the dialog box.Click the Office button and then click Excel Options.(The Developer tab is not visible in a default installation of Excel.) To display the tab if you are using Excel 2007, follow these steps: If it is not visible, that means you have not configured Excel to display it. The Developer tab is not contextual in nature it should always be visible on the ribbon. Of particular importance is the fact that the Developer tab contains tools that allow you to create and access macros. This tab contains a variety of tools that allow you to 'develop' and customize Excel. One tab that is especially necessary for advanced users is the Developer tab. The tabs that are visible often depend on what you are doing in Excel at the moment. The ribbon is made up of different tabs, each of which contains a collection of related tools. The new interface uses a 'ribbon' type of interface, visible at the top of the screen. The user interface in modern versions of Excel-first introduced in Excel 2007-can be confusing, especially to those who have long used the interface of previous versions of the program.

How to add developer tab in excel 2007