How to open Generic Encapsulated PostScript graphic .ai4 files
Have you had trouble opening the ai4 file on your computer? What are ai4 files? We explain what they are and recommend software that we know will open them.
What is ai4 file?
An ai4 file extension is related to Generic Encapsulated PostScript graphic format developed by Adobe Systems.
Generic Encapsulated PostScript graphic description
The ai4 file extension is associated with the Generic Encapsulated PostScript graphics file format.
(Encapsulated PostScript) A PostScript file format used to transfer a graphic image between applications and platforms. EPS files contain PostScript code as well as an optional preview image in TIFF, WMF, PICT or EPSI, the latter being an ASCII-only format.
Adobe Illustrator has its own variation of EPS, which is an EPS subset, thus, both Illustrator EPS and standard EPS files are in use.
Suggested software to open ai4 file

Adobe Illustrator
A powerful vector graphics editor from Adobe