.ISO, Image Files, Data Files, etc

I’ve been trying to learn about software and some people have responded by saying they use different programs to burn different files. For example, they use one to burn .ISO or Image files. Another will work well for data files. Can someone please help me understand these? What is .ISO? What other “types” of burns are there? I apologize for the remarkably vague question–I understand very, very little and am not sure where to start. Just knowing what .ISO is and what are the other similar formats (?) would be a big help. After I get a little bit of a start I can do some reading and start learning more. Thanks!

ISO image

Related file formats found at the bottom of the page

:cool: :cool: