List of Extensions starting with the letter J – Name and Description

List of All the File Extensions Formats and Types Starting With the Letter J

File Extension Description
.JACL IBM WebSphere server script
.JAD Java application descriptor
.JAG Atari Jaguar JPEG compressed image
.JAR Compressed archive package for Java classes and data files
.JAS Corel PaintShop Photo Pro bitmap graphics
.JASPER JasperReports data
.JAV Java language source code
.JAVA Java language source code
.JAVAJET Eclipse JET Java template
.JNLP Java Network Launching Protocol
.JEF Janome embroidery layout
.JEG Embroidery format
.JEWELQUESTSAVEDGAME jewel Quest saved game
.JSP JAVA Server page
.JIA Digital Photo Navigator album
.JIGSAW Jigsaw Explorer puzzle
.JIT Aika Online texture
.JOD Microsoft Jet OLEDB.4.0
.JOI XBoard Join conferences
.JOMPROJ Microsoft Visual Studio JOOB object model project
.JOU VAX Edt editor journal