By Allen Wyatt for Excel.Tips.Net
Understanding Excel Macros
A macro is similar to a computer program. It consists of a series of instructions that the computer follows in a sequence you specify. The macro is given a name that is used to run the instructions it contains. Excel provides two general ways to create a macro. The first (and easiest) method is to record a macro using the macro recorder. The other method is to write a macro from scratch using the VBA Editor. While writing from scratch is perfectly acceptable, it is often a good idea, especially for smaller macros, to record the basic steps you want performed and then edit the recorded macro to create the final instructions.
Anything you do in Excel that is of a repetitive nature is a good candidate for a macro. For instance, you might have the job of creating financial analysis reports for your company and you want to create a macro that will enter the company name in the current cell and format it using the proper font. Such a task is easily done with a macro.
When you create a macro, you have the opportunity to store it in any of three places. Where you store a macro determines when it is available and how it can be later used.