3.3 | 15 Votes
What is a GBR file?
A GBR file contains printed circuit board (PCB) design data in Gerber format, which is an industry-standard file format supported by many PCB design systems. It contains instructions for drilling and milling the board and includes information about the board's electrical connections. GBR files are commonly used by PCB professionals to securely exchange image, drill, and rout data from design software to manufacturing machines.
The Gerber format is simple and compact, storing data that precisely describes a 2D image of a PCB and metadata required for the fabrication of a PCB. The GBR format was originally developed by Gerber Systems but is now maintained by Ucamco.
Programs that open GBR files
GIMP Brush File
3.0 | 5 Votes
Image brush used by the GNU Image Manipulation Program (GIMP), an open source image editing application; stores the description, bitmap image, and the spacing for the brush; used for storing graphics that can be repeatedly painted on a GIMP image canvas.
GBR files are used to store both the default program brushes as well as custom user brushes. Some default brushes are located in the /share/gimp/2.0/brushes/ directory of a GIMP installation.
Programs that open or reference GBR files
Gameboy Tileset File
2.0 | 5 Votes
File created by Gameboy Tile Designer (GBTD), a program that lets users design tiles for their Gameboy productions; contains tile and palette information including the Gameboy color set, number of tiles, and tile size (8 x 8, 8 x 16, 16 x 16, or 32 x 32).
To create a GBR file, design your tiles, select File → Save or Save As..., name the file, choose the save location, and click Save.