This was in the file -
%!PS-Adobe-3.0 EPSF-3.0
%%Creator: cairo 1.12.8 (
http://cairographics.org)
%%CreationDate: Thu Dec 19 19:12:59 2013
%%Pages: 1
%%DocumentData: Clean7Bit%%LanguageLevel: 2
%%BoundingBox: 0 -1 1440 1440
Clean7Bit means from saving a file from InDesign as a Postscript output. Or so the internet says, lol. Wouldn't open in InDesign either. Saw it in Corel, but the text is AFU. Funky font.
That link indicates may have really come from some open source item. Maybe if you're really lucky, they'll give you one made in MS Paint.....kidding.....