File Extension Library

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.JJ File Extension

  • Developer by: Pierre-Emmanuel Gougelet
  • Category: Bitmap image Files

What are .JJ files and how to open them?

Can't open .JJ file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .JJ file.

What is a .JJ file extension?

.JJ file extension is created by Pierre-Emmanuel Gougelet. .JJ has been classified as Bitmap image Files.

.JJ is Doodle C64 Compressed image format

The jj file extension was in the past used for a special compressed image format used on Doodle program for Commodore 64.

Doodle was a popular graphics editor on that platform.

.JJ file format is deprecated and this file format is no longer supported.

Currently, .JJ file type is not actively used and is obsolete. This usually happens with system files in older operating systems, files from long-discontinued software, or with previous versions of some file types (documents, projects, images, etc.) that were replaced in later versions of the original programs.


How to open:

You should be able to view these files using XnView.

How to convert:

Use XnView to export *.jj files to other formats.

How to fix problems with .JJ files

  1. You need to update the application that you normally use to open .JJ files. Only the latest version of the software supports the current .JJ file format
  2. You need to check the .JJ file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)
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