Encapsulated PostScript is a DSC-conforming PostScript document with additional restrictions which is intended to be usable as a graphics file format.
PostScript is a page description language in the electronic publishing and desktop publishing business.
Image file formats are standardized means of organizing and storing digital images.
Convert a Figure in MS Excel / OpenOffice into Eps Format by ratuliut
In other words, EPS files are more-or-less self-contained, reasonably predictable PostScript documents that describe an image or drawing and can be placed within another PostScript document.
How to Convert a CorelDraw File to EPS Offline by Photoshop Design and Photo editing Tutorials from HowTech
Simply, an EPS file is a PostScript program, saved as a single file that includes a low-resolution preview "encapsulated" inside of it, allowing some programs to display a preview on the screen.
At minimum, an EPS file contains a BoundingBox DSC comment, describing the rectangle containing the image described by the EPS file.
Applications can use this information to lay out the page, even if they are unable to directly render the PostScript inside.
EPS, together with DSC's Open Structuring Conventions, form the basis of early versions of the Adobe Illustrator Artwork file format.
Adobe Illustrator Artwork is a proprietary file format developed by Adobe Systems for representing single-page vector-based drawings in either the EPS or PDF formats.