Available through the Developer tab on the ribbon. If you don’t see a developer tab:
On the File tab, choose Options to open the Excel Options dialog box.
Click Customize Ribbon on the left side of the dialog box.
Under Choose commands from on the left side of the dialog box, select Popular Commands.
Under Customize the ribbon on the right side of the dialog box, select Main tabs, and then select theDeveloper check box.
Click OK.
How do I insert a macro I downloaded from this site?
Download the file or copy the code
Go to Visual Basic Editor following instructions above
Go to the workbook where you would like to insert the macro. If you would like to use it all the time, you’ll need a macro file (I’ll explain this later).
From the File menu, select Import file, and select the file you just downloaded.
done! Now you need a way to run the macro… see for example this post.