No addon making required!
Store it in a special workbook called Personal.xlsb
Steps:
You can make macros available across all your workbooks, by saving them to a special workbook that Excel loads each time it is opened.
YouTube : How to Create a Personal Macro Workbook in Excel and Why You Need It
Office Support : Create and save all your macros in a single workbook
Office Support : Copy your macros to a Personal Macro Workbook
