A gfw file extension is related to the ArcView, GIS program for Windows. A gfw file contains world data.
Software that open gfw file
GFW file extension - ArcView world data
What is gfw file? How to open gfw files?
File type specification:
The gfw file extension is associated with the ArcView, a geographic information system (GIS) for Microsoft Windows operating system, developed by ESRI.
The gfw file stores world data (set of GIF images).
The default software associated to open gfw file:
ArcGIS for Desktop Basic (ArcView) 
Company or developer:
Esri
ArcGIS for Desktop Basic (formerly known as ArcView) is GIS (geographic information system) application used to visualizing, managing, creating, and analyzing geographic data.
ArcGIS for Desktop Basic is a part of the ArcGIS Desktop. ArcGIS for Desktop Basic supports creation of interactive maps, spatial analysis, GIS deployment, map viewing and navigation, map printing etc.
List of software applications associated to the .gfw file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open gfw file, edit gfw file, convert gfw file, view gfw file, play gfw file etc. (if exist software for corresponding action in File-Extensions.org's database).
Hint:
Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting gfw files.
Software that open gfw file - ArcView world data
Programs supporting the exension gfw on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about ArcGIS for Desktop Basic (ArcView) for open gfw file action.
