File extensions beginning with j


File Extension Description
J2C JPEG 2000 image
JAM Jam messagebase
JAM Jam music score
JAR Archive
JAS see JASC
JASC Graphics format (JASC)
JAV see JAVA
JAVA Java source code file
JBD Datafile
JBIG Joint Bilevel Image Group
JBX Project file
JCN JobClock.Net Synch File
JET Fax
JFF see JFIF
JFIF JPEG File Interchange Format
JIF see JFIF
JK Root File of a lol
JMS Music format (JMusic file)
JOB Gravostyle engraving pattern file
JOB QUEUE output file
JOR Journal file SQL
JOU Journal backup
JP2 JPEG 2000 image
JPC Graphics
JPEG Joint Photography Experts Group graphics file format
JPG see JPEG
JRE Java Runtime Environment
JRN JMP journal
JS JScript script file
JSP Java Server Pages
JTF Fax
JTF Graphics (TIFF file with JPEG compression)
JVX Data
JW Text document
JWL Library
JZZ Spreadsheet