If you have closed your file before running your macro, you'll be prompted to enable the content. This appears at the top of the Excel spreadsheet in a Security Warning bar whenever a macro-enabled workbook is opened. Since it's your own file, you can trust it, but be very careful opening macro-enabled files from any other source. When you want to use your macro, you can quickly run it by pressing the shortcut you created for it. This will display all of the macros that are available in your current spreadsheet.  The macro will be run in your current cell or selection. If you want to learn more about how macro coding works, you can open the code of any macro you've created and tinker with it:  Click the Macros button in the Developer tab. Click the macro you want to view. Click the Edit button. View your macro code in the Visual Basic code editing window.

How would you rephrase that briefly using Vietnamese?
Mở tập tin Excel cho phép sử dụng macro của bạn. Nhấp chuột vào tùy chọn Enable Content (Bật nội dung). Nhấp phím tắt macro của bạn. Nhấp chuột vào nút Macros trên thẻ Developer. Nhấn vào macro mà bạn muốn chạy. Nhấn nút Run (Chạy). Xem code của một macro.