JJ File Extension

What is JJ file?

JJ filename suffix is mostly used for Doodle C64 Compressed Image Format files. JJ files are supported by software applications available for devices running Windows. Files with JJ extension are categorized as Graphic Files files. The Graphic Files subset comprises 524 various file formats. The software recommended for managing JJ files is XnView. XnView software was developed by Pierre-Emmanuel Gougelet, and on its official website you may find more information about JJ files or the XnView software program.

Programs which support JJ file extension

The following listing features JJ-compatible programs. JJ files can be encountered on all system platforms, including mobile, yet there is no guarantee each will properly support such files.

How to open file with JJ extension?

Problems with accessing JJ may be due to various reasons. What is important, all common issues related to files with JJ extension can be resolved by the users themselves. The process is quick and doesn’t involve an IT expert. The following is a list of guidelines that will help you identify and solve file-related problems.

Step 1. Download and install XnView

The main and most frequent cause precluding users form opening JJ files is that no program that can handle JJ files is installed on user’s system. The solution to this problem is very simple. Download XnView and install it on your device. The full list of programs grouped by operating systems can be found above. One of the most risk-free method of downloading software is using links provided by official distributors. Visit XnView website and download the installer.

Step 2. Check the version of XnView and update if needed

If the problems with opening JJ files still occur even after installing XnView, it is possible that you have an outdated version of the software. Check the developer’s website whether a newer version of XnView is available. Sometimes software developers introduce new formats in place of that already supports along with newer versions of their applications. This can be one of the causes why JJ files are not compatible with XnView. The latest version of XnView should support all file formats that where compatible with older versions of the software.

Step 3. Assign XnView to JJ files

If you have the latest version of XnView installed and the problem persists, select it as the default program to be used to manage JJ on your device. The next step should pose no problems. The procedure is straightforward and largely system-independent

Selecting the first-choice application in Windows

• Choose the Open with entry from the file menu accessed by right-mouse clicking on the JJ file
• Click Choose another app and then select More apps option
• The last step is to select Look for another app on this PC option supply the directory path to the folder where XnView is installed. Now all that is left is to confirm your choice by selecting Always use this app to open JJ files and clicking OK.

Selecting the first-choice application in Mac OS

• By clicking right mouse button on the selected JJ file open the file menu and choose Information
• Proceed to the Open with section. If its closed, click the title to access available options
• Select the appropriate software and save your settings by clicking Change all
• A message window should appear informing that This change will be applied to all files with JJ extension. By clicking Continue you confirm your selection.

Step 4. Verify that the JJ is not faulty

If you followed the instructions form the previous steps yet the issue is still not solved, you should verify the JJ file in question. Being unable to access the file can be related to various issues.

1. Verify that the JJ in question is not infected with a computer virus

Should it happed that the JJ is infected with a virus, this may be that cause that prevents you from accessing it. It is advised to scan the system for viruses and malware as soon as possible or use an online antivirus scanner. If the JJ file is indeed infected follow the instructions below.

2. Verify that the JJ file’s structure is intact

Did you receive the JJ file in question from a different person? Ask him/her to send it one more time. During the copy process of the file errors may occurred rendering the file incomplete or corrupted. This could be the source of encountered problems with the file. If the JJ file has been downloaded from the internet only partially, try to redownload it.

3. Verify whether your account has administrative rights

Sometimes in order to access files user need to have administrative privileges. Log out of your current account and log in to an account with sufficient access privileges. Then open the Doodle C64 Compressed Image Format file.

4. Verify that your device fulfills the requirements to be able to open XnView

If the systems has insufficient resources to open JJ files, try closing all currently running applications and try again.

5. Check if you have the latest updates to the operating system and drivers

Up-to-date system and drivers not only makes your computer more secure, but also may solve problems with Doodle C64 Compressed Image Format file. Outdated drivers or software may have caused the inability to use a peripheral device needed to handle JJ files.

Do you want to help?

If you have additional information about the JJ file, we will be grateful if you share it with our users. To do this, use the form here and send us your information on JJ file.