Years before Eidos was acquired by Square Enix, the company worked with both Squaresoft and Enix separately. Eidos published Dragon Quest Monsters from Enix and handled the PC port of Final Fantasy VII which was packaged in a trapezoidal box. The PC version was never released in Japan probably because the market for PC software is fairly small and Squaresoft would have to switch the text back to Japanese.
Fast forward to 2013 and Japan is finally getting Final Fantasy VII International on PC. This version is localized with Japanese text too. Square Enix will sell digital copies through their eStore just like they did with the US re-release. Final Fantasy VII International will be released "soon" in Japan.