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How to open .GRF file extension?

File Type : DLG Graphic Format
Compatible with (WinXP,Vista,Win7,Win8 and Win10)

Looking for a program to open .GRF files?

"Windows unable to open a file!" is probably the most common error faced by millions every day. This is either because the program required to open a file is not available on your system or there may be other issues.

We recommend that you run a free scan to check for missing drivers.



What is .GRF file extension?

.GRF file extension is a known file type. This section of tells you everything you need to know about this extension.
Compressed file archive used by Ragnarok Online, a Korean multiplayer game; includes compressed images, sounds, and other data files loaded by Ragnarok; installed with the other game files and are named "data.grf" and "sdata.grf." The contents of a Ragnarok GRF file can be browsed and extracted using GRF Factory, a free utility available at
You can see a list of software programs here on that can open this file type so that you don’t need to search for it on the web. You can then open your file with this extension using a software listed below.

Software that can be used to open .GRF files:

Microsoft Windows:
  • GRF Factory
  • GRAVITY Ragnarok Online