Software development project file created by JBuilder, a development IDE for the Java programming language; saves references to source code files as well as project properties; used for saving and loading projects. NOTE: JBuilder was formerly owned and developed by Borland.
GIS file created in Fugawi's JPR format, a format used for georeferencing raster map images to actual world coordinates; similar to the .JPW and .TFW formats, except it can specify more calibration information; saved in a plain text format.