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Refactor - coding technique

Refactoring is a technique to improve your code.

You take the code you've written and improve it.

It helps to have some automated testing and previous versions.

This way after you improve the code, how will you know if you broke something?

You might have used a poor coding technique but want to improve the code

You may have duplicate code that you want to put in one place

Unorganized Modules

Unused code

Unused sheets/functions