File extension gp4

Name: 3D Graphics Files

Popularity: 10

Open With: XnView

What is this gp4 file?

CALS = Computer Aided Acquisition and Logistics Support. File could be opened by Autodesk AutoCAD.

Name: Audio Files

Popularity: 6

Open With: TuxGuitar

What is this gp4 file?

Guitar tabs format used by Guitar Pro 4, a multitrack guitar composition and accompaniment program; may contain guitar, bass, or banjo tabs; saves data in a music notation format that can be opened by Guitar Pro or other open-source guitar notation programs.

Name: Raster Image Files

Popularity: 6

Open With: FaxSee Pro

What is this gp4 file?

Fax file saved by various fax programs; contains a generic fax document saved in the CCITT (International Telegraph and Telephone Consultative Committee) standardized Group 4 format, which stores a a 1-bit, or bi-level, image using a lossless compression. The Group 4 encoding format, designed for data networks, replaced the older Group 3 encoding format. It compresses data into much smaller sizes.