.GR9 File

The gr9 file extension is related to the ATARI Graphics 9 picture image file format used by ATARI 400, 800, 130 XL XE an 8-bit home computers.

The gr9 file stores bitmap image in 80x240 resolution with 16-level grayscale.

This gr9 file type entry was marked as obsolete and no longer supported file format.

This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.

How to open:

Use RECOIL to open *.gr9 files.

How to convert:

There is no specific information in the database, about how to convert this file extension. For general information try to look at:Basic info how to convert bitmap files