Varieties of G3 Files

Primary G3 File Association

.G3

Extension:	.g3
Category:	CCITT Group 3 Fax Image

The G3 file is a fax image created in the CCITT Group 3 compressed format, which is used for digital transmission of fax data and supports 1 bit per pixel.The G3 file can be viewed by programs such as GIMP and IrfanView.

Programmer:	International Telegraph and Telephone Consultative Committee (CCITT)
Function:	Raster Image Files
Registry Key:	HKEY_CLASSES_ROOT\.g3

Software Programs That Open The CCITT Group 3 Fax Image:

GIMP by The GIMP Development Team

Windows

Mac

Linux

IrfanView by Open Source

Windows

iOS

Android

Linux

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Troubleshoot G3 Files

Troubles Opening G3 Files

GIMP Disappeared

If you attempt to load your G3 file, you experience a message such as "Can't Open G3 Files". If this is the case, it's usually due to the fact that you do not have GIMP for %%os%% installed on your computer. The OS won't know what to do with your G3 file, so double-clicking to load the file doesn't work.

Tip: If you know of another program that can open your G3 file, you can try opening it by selecting the application from the programs listed.

Wrong Version of GIMP is Installed

Occasionally, you might have an outdated version of GIMP installed that's incompatible with your CCITT Group 3 Fax Image type. If you've got the wrong version of GIMP installed, you'll need to install the correct version. This problem is most common when you have an older version of the software application, and your file was created by a newer version that it cannot recognize.

Tip: Right-clicking on your G3, then clicking "Properties" (Windows) or "Get Info" (Mac), can provide clues about your file version.

Ultimately, most of the difficulties opening G3 files are due to having the wrong version of GIMP installed.

Additional G3 Opening Issues

Even with the correct version of GIMP installed, you can still experience difficulties opening G3s. If you are continuing to have errors with loading G3 files, other external issues might be to blame. These other problems include (listed in order from most to least common):

• Windows Registry G3 file paths that are incorrect
• Deletion of the G3 file description from the Registry by mistake
• Incomplete or bad installation of a software application associated with the G3 format
• Your G3 file is corrupted (issues with your CCITT Group 3 Fax Image file itself)
• Your G3 is infected with malware
• Hardware associated with G3 has outdated drivers
• Windows cannot load your CCITT Group 3 Fax Image file due to insufficient resources (eg. RAM)