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Opening J Files without JPEG / JFIF Image, JAR Compressed File, or Java Source Code Software Installed
Different software packages tend to sometimes share similar file types. JPEG / JFIF Image, JAR Compressed File, and Java Source Code are some of the popular programs that use the J file extension, so you should be able to use any of these three to open your file. You might even be able to find others by doing a quick Google search.
A word of warning, though. Be sure to scan any free software you download with a malware checker before running it on your computer.
If You Have JPEG / JFIF Image, JAR Compressed File, or Java Source Code Installed
If one of these software packages are already installed on your PC, but it still won't work to open your J file, you might have to check that the file associations are correct. Right-click on the file, select "Open With...", and then select JPEG / JFIF Image, JAR Compressed File, or Java Source Code. That will create an association between the J file extension and your chosen software.
Your J Might Be Corrupt
Finally, if you're still having issues opening your J file, download the file again or ask the sender to resend it. It's possible that your J file might be corrupt. As a last resort, contact the software developers to see if they may be of further assistance.
Here's a list of J-related software programs and their developers:
Software | Developer |
---|---|
JPEG / JFIF Image | Microsoft Developer |
JAR Compressed File | Unknown |
Java Source Code | Sun |
The Easiest Way to Open J File Extensions
Don't want to spend money on buying software to use it only once? Save yourself the trouble of installing unwanted software simply to view the occasional J file by downloading a universal software viewer such as File Magic [download] instead. File Magic allows you to open and view hundreds of different file types with one program. Download File Magic now and try it for yourself.
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1File types that are unsupported can be opened in binary format.