In the bottom right of the options window, look for the button. Select Import customization file .
: A text file explaining where to import the settings. How to Use It buttons_for_2003.7z
Are you trying to apply these buttons to a of Office, like Office 365 or Office 2021 ? In the bottom right of the options window,
Since this is a manual UI modification, follow these steps to apply the guide: buttons_for_2003.7z