With the file extension EPSI eps files are marked with a platform-independent preview image. Epsi files are always in ASCII format and contain no binary data or headers. However, since Windows EPS files are more likely to contain a tiff preview image as well as metadata, EPSI is mainly used on Unix systems. However, EPSIs should be able to open files on any platform from most eps-enabled programs.
Encapsulated PostScript (EPS) is a standard graphics format for importing and exporting files in the page description language postscript. An EPS file contains only one page, unlike normal Postscript files (ending with ps). In addition, EPS files meet special requirements in order to be integrated into a document.
While a normal ps file contains only PostScript commands to print the graphic or text (describing the elements to be printed), eps files can contain any combination of text, images, fonts, or vector graphics. This makes eps a very versatile format and also has the advantage of scalability.
EPS files usually contain a preview image in tif, wmf or pict format (depending on the operating system used), which can be displayed by many programs without having to interpret the postscript commands or to be able to. Thus, eps files can also be used by programs that do not have a PostScript interpreter. Of course, these thumbnails do not offer the quality of the original data, which is why they should only be used in an emergency.
There are a number of programs as well as free programs that can read and generate eps files. Some programs such as Scribus also require the free Ghostscript interpreter to import eps files, which then takes care of the processing of this data.
Most often resolving problems with opening EPSI files is very simple. Just install an appropriate program that supports such files. All of the listed programs support EPSI files, but may vary in offered function and purpose. Some programs may be capable only of viewing contents of EPSI files or offer file conversion options, but may not be capable of editing such files.
It is possible that although a compatible program has been installed on user’s system, it is not used by the system to open it. This may happen because no default application was associated with this type of files. To associate EPSI files with given application, select "Open with" from drop-down menu (accessed by right-clicking on the file). Then select from the list the program or application you want to be used to open this type of file. If the Adobe Photoshop applications is not on the list, select "Browse" option in order to manually locate the directory where Adobe Photoshop has been installed.
Sometimes problems with opening EPSI files may not lie with the application itself, but can arise due to other causes, such as: