Open GP3 file

GP3 files: what are they and how do I open them?

gp3 file icon Are you facing difficulties opening unknown files on your computer, or wondering exactly what this file is?
We've got the information and best software solutions for opening these files effortlessly.

.gp3 file type #1: Guitar Pro 3 project

Files with gp3 extension can mainly be found as projects created in Guitar Pro 3 software from Arobas Music.

Further details:

The gp3 file extension is associated with Guitar Pro 3, a multitrack editor of guitar and bass tablature, which allows you to create whole scores for guitar, bass or other stringed instruments in a few minutes.

The gp3 file stores audio project created in the Guitar Pro 3.

Guitar Pro 3 is multiplatform application that is distributed  for Windows, Mac OS X (macOS) and Ubuntu. It is developed by the French company Arobas Music.

Open file with:

Guitar Pro icon

Guitar Pro

A multi-track editor and music composer for guitars

DGuitar icon


A viewer for Guitar Pro files

MuseScore icon


A free cross-platform WYSIWYG music notation software

TuxGuitar icon


Open source tablature editor and player

DGuitar for Mac

A Guitar Pro player

DGuitar for Linux

A Guitar Pro player

.gp3 file type #2: Gerber internal plane layer data

Files with gp3 file suffix are related to the Gerber internal plane layer data format used by Altium Designer.

Further details:

The gp3 file extension is associated with the Altium Designer, a PCB (printed circuit board) designing software for Microsoft Windows operating system.

The gp3 file stores gerber internal plane layer data.

Open file with:

Altium Designer icon

Altium Designer

A PCB and FPGA design software

What is the meaning of a file extension?

File extensions are characters that appear after the dot in a computer file's name. For example, the file "unknown-file.gp3" has the file extension "gp3". This is used to identify which program should open the file or what file type it is.
File extensions help you organize and manage files. They provide a quick and easy way to identify and associate the file type with the appropriate software.

We can help you open your file

In our database, we have collected a huge number of different file extensions, detailed descriptions, and programs that can be used to open or otherwise work with the file extensions listed in our database.
This database is an invaluable resource for users who want to understand better file extensions and what they can do with them. It also allows users to know different file types with the same purpose.

Only verified software links are provided

We have verified every software listed in our database. The software listed in our database includes links to the developer's or software's website. These links should allow you to download the right program for each file type. Using verified software from reputable sources helps minimize the risk of malware and viruses infecting your computer.