I've gotten errors when I attempted to use Inkscape, GIMP, and Uniconverter because I don't have access to the proprietary software. Perhaps the file corrupt? Thanks for any advice, this is a charitable cause ("Feed my Starving Children") if that is extra motivation for you!
I'm trying to convert the .eps which is part of this .zip. Another way to get to the file is to start here, and scroll down to the three "Mobile Pack Logos"