Quick question here’s a design I’m working on for my business. I want to know all the circles that I got going around the other circle. How do I evenly spaced them? What tool do I use? 
You could use a number of tools to make a graphic like that if that is what you are asking. If you are trying to edit the file, the extension will tell you what application it is from as it could be from an Adobe application, Microsoft Publisher, or any number of possible applications.