What allows people to use a program on different operating systems

API (Application Programming Interface)

Explanation:

API in its simplest terms is just like a middle man that allows your computer run programs. Every computer has an operating system, some common operating systems include Windows, Linux, Mac and others. So when a program starts running on a computer, the computer's operating system understands or knows what to do through the API of the running program

answer: a i guess

explanation:

a macro is a tool that allows you to automate tasks and add functionality to your forms, reports, and controls. for example, if you add a command button to a form, you associate the button's onclick event to a macro, and the macro contains the commands that you want the button to perform each time it is clicked.