How can I open EPS files under Windows 7?
EPS is encapsulated postscript. If you search for programs which can open postscript you will find a lot of them.
Some of them, in a random order, are:
Ghostscript (really the classical answer)
GIMP. Large, but handles just about everything (but needs Ghostscript anyway).
Photoshop. Also quite large.
EPS viewer (Which is the first link I got when I Googled on "win7 EPS viewer").
I open a blank Word document, and from insert option, choose pictures, browse and insert the eps file in my document.
Not a great solution if you want to edit the eps file, but good enough if all you want to do is view the file (I'm not installing 3rd party software just to view a file if I don't have to).