OpenRaster is an effort by the Create project to offer a standardized and open interchange format for raster-based applications. MyPaint and Drawpile (SVN version) uses this format by default, and Krita and gegl should be able to use it. Now GIMP can too! This plug-in will be in GIMP 2.7.1+ If you are using such a version, please use the provided plugin instead of this one.
DOWNLOAD FROM HERE:
You will need Python support for GIMP.
Move the file to GIMPs plug-in directory to install.
On GNU/Linux, make sure the file has executable permissions.
On Windows, see "What do I need to do to get Python scripts to work?" in
http://gimp-win.sourceforge.net/faq.html for how to get Python support.