Files with GRA extension might be also found as part of OpenGL. Some sort of object document file format.

There are 4 other file types using
the GRA file extension!

empty icon.gra - Microsoft Graph chart

empty icon.gra - Microsoft Flight Simulator file

empty icon.gra - Lotus Notes language dictionary file

empty icon.gra - STN Express transcript graphics file

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GRA file - OpenGL object graphic document

What is gra file? How to open gra files?

File type specification:

Various data file type icon Various data file type

The GRA file extension is also reported to have been used for some sort of object graphic document format from OpenGL. May be old file type and no longer used.

Help how to open:

This file type is not meant to be opened directly, there is no software that could open and work with it directly, or there is no information available in public sources about opening this file type. This is usually the case of some internal data files, caches, temporary files etc.

How to convert:

As far as we know, this .gra file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.

Related links:

OpenGL website

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