Computer file extensions - J
Updated: 06/30/2019 by Computer Hope
Below is a listing of each of the different file extensions that begin with the letter "J." If you are looking for a file extension that starts with a different letter, click the corresponding beginning letter below.
| J | |
|---|---|
| .J2K | JPEG (Joint Photographic Experts Group) 2000 file. |
| .JAR | 1. A compressed file used with ARJ Software. 2. A compressed file containing Java packages and classes. |
| .JAS | A graphics file. |
| .JEF | Janome embroidery file. Used in sewing and embroidery. |
| .JNG | Multiple network graphics file. |
| .JP2 | JPEG 2000 file. |
| .JPC | JPEG 2000 file. |
| .JPEG | Graphic commonly used on the Internet and capable of being opened by most modern image editors. See our JPEG definition for full information and related links. |
| .JPG | See above JPEG explanation. |
| .JPM | JPEG 2000 file. |
| .JS | JavaScript file. |
| .JSB | Henter-Joyce Jaws script binary file. |
| .JSD | A efax jet suite document. |
| .JSE | JScript encoded script file. |
| .JSH | Henter-Joyce Jaws script header file. |
| .JSL | PaintShop Pro file. |
| .JSM | Henter-Joyce Jaws script message file. |
| .JSP | Java server page. |
| .JSS | Henter-Joyce Jaws script source file. |
| .JT | JT fax file. |
| .JTF | JPEG tagged interchange format file. |
| .JTK | Java toolkit file. |
| .JTP | JetForm file. |
| .JW | Justwrite text file. |
| .JWL | Justwrite text file library. |
| .JZZ | Jazz spreadsheet. |