A vector graphics file is an image that can be made infinitely large or small without losing quality. Common vector file types include .AI (Adobe Illustrator), .EPS (Encapsulated Postscript), and .SVG ...
An .EPS is a special digital image format that stands for "encapsulated postscript." Only specific graphics software, such as Photoshop, Photoshop Elements or Illustrator, can open and edit this file.