You can always open the EPS file in a text editor and look at the second line.
Should look like this
%%Creator: Adobe Illustrator(R) 8.0
This is an EPS 8 saved from AI10.
Of course I know that, but 1) it is very disruptive to my workflow to have to drag each file into Notepad;
and 2) this is NOT a foolproof way of being able to identify version, since a lot of times I get files with headers like this:
ÅÐÓÆ õ¬% % ñ ÿÿ %!PS-Adobe-3.1 EPSF-3.0
%ADO_DSC_Encoding: Windows Roman
%%Creator: Adobe Illustrator(R) 13.0
Clearly it states that the Creator is CS3 (which is normally which EPS version this is, this should say 10 or 8), but is missing the "CreatorVersion" tag. I happen to know this one will open in Illustrator 10, so it must be EPS-10 or earlier, but I have no way of knowing which version it actually is.
Is there ANY other way to know?
You could always try Ghostscript. Not only is it able to identify a billion of variants, but it is also able to fix invalid headers and data 8in batch, if need be).
I'm a designer, not a coder
Any suggestions on how to go about doing that? Does it work through Illustrator itself?
How typical, that is not possible on a PC.
What is "data 8in batch" ?
I will try to chase down GhostScript and see if I can learn it myself.