A grf file extension is related to the Ragnarok Online, an MMORPG game. A grf file stores game archive.
GRF file extension - Ragnarok game archive
What is grf file? How to open grf files?
File type specification:
The grf file extension is also used by Ragnarok Online, an MMORPG based on Norse mythology. Users can create characters and venture off alone or in groups in far-flung fantasy worlds full of adventure.
The .grf file contains game archive.
The default software associated to open grf file:
Company or developer:
Gravity Interactive Inc.
Ragnarok is popular Korean MMORPG computer game released in 2002 based on the manhwa Ragnarok by Lee Myung-jin.
List of recommended software applications associated to the .grf 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 grf file, edit grf file, convert grf file, view grf file, play grf file etc. (if exist software for corresponding action in File-Extensions.org's database).
Unspecified and all other actions for computer programs working with grf file - Ragnarok game archive
Click on the software link for more information about Ragnarok. Ragnarok uses grf file type for its internal purposes and/or also by different way than common edit or open file actions (eg. to install/execute/support an application itself, to store application or user data, configure program etc.).