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A JSON File is one developed to store simple data objects and structures in the format of JavaScript Notation shortened as JSON.

JSON is a standard data interchange format. The file can be used in transmitting data between a server and a web application. Some of the unique features that make Json File special are its lightweight and the fact that it is based on a text. The file is equally human readable and you can easily edit it using any of the available text editors on your computer.

Originally, Json File was based on a JavaScript subset and it is also considered as a language-independent format since it is supported by various programming APIs.

It is popularly used in Ajax Web application programming. The Json File is now being used as an alternative to XML.

Many applications are using it for the purpose of data interchange. But they may not be saving the file on the hard drive because the data interchange comes up between computers that are interconnected.

Be that as it may, users can save the JSON File using some applications. A very good example of such an application is Google+; this application can use the JSON File to save Profile data.

After you have logged in, you only need to choose "date liberation" and then choose "Download your Profile data"

In Mozilla Firefox, the Json File is used in saving bookmark backups. It can help save the files to the Firefox user profile directory in a folder labeled as bookmark backups.

You can also make a backup manually to be saved in the bookmarks and import folder of the Firefox browser.

You can then import the backups into another copy of a Firefox file. The importing is very easy and straightforward.

  • First, open the bookmark Library then click on Import/export button, which you can find at the top bar,.
  • Then choose Restore and File, after which you should choose the backup file.


How to open JSON File

You can open and easily view the JSON File on your computer by using the File Viewer Plus, which can be downloaded for free.

Some of the programs that can open the file are:

  • Microsoft Notepad
  • Altova XMLSpy a
  • File Viewer Plus



If you use Windows Operating System, you can easily open the JSON File using Mozilla Firefox, Notepad++, Microsoft WordPad and several other text editors.



If you are using the Mac Operating System, you can equally use other programs like Pico, Vim, Mozilla Firefox, Mac Vim and several other text editors installed on your computer.



Those using Linux can equally access the JSON File using programs Mozilla Firefox, GNU Emacs and several other text editors. Each of the tools and programs installed here is verified and can be trusted to get the job done perfectly.



Aside from the above methods, you can equally open the file on your android device using File Viewer for Android.

Many of the tools and programs mentioned above are available for free and you will never have to pay for them before you can use them.

File type: Java Archive


Open JAR File

These are java archive files that contain all the necessary files for the running of a java application. The JAR files are used for packaging, deploying as well as distributing java applications easily.

It is essentially a compressed file format which uses the ZIP compression algorithm to compress the files together into a single archive file. JAR files have a prescribed directory structure and come with certain specific files that helps identify the JAR file.

These also contain certain configuration information which help the Java Virtual Machine to run the jar file as an application. These JAR files can be digitally signed as well. For running these files it is required that the Java Runtime Environment should be installed on the computer.

JAR files are also often used for packaging and distributing java libraries which can then be referenced by java applications and taken advantage of for use in themselves.

It helps modularizing the java applications and separating or segregating the various parts of the application which are not dependent on each other but help the applications separate needs. JAR files are also used by the Mozilla Firefox, SeaMonkey, Thunderbird as well as the Sunbird application to store information such as themes and add-ons.


Detailed information 

Category: Data File.
File format: Proprietary.
Open Jar file with Windows: WinZip, Java Runtime 1.1 or later, Web browser with Java support
Open with Linux:

File type: Java Server Page


What is

These are server generated HTML files on the internet which are written using Java code. Java which is a programming language developed by Sun Microsystems is used for writing the code within these pages.
These files are passed, compiled and executed by Web Servers and then their output is send to the computer of the user who had requested for the file.
The user on the client browser never sees the actual java source code that went in behind the development of that page.
He only sees the HTML code that was generated from the compilation and execution from the web server. These files are essentially text based files and can be opened and edited using any standard text editors.

Detailed information 

Category: Data File.
File format: Proprietary.
Open with Windows: Web browser, such as Internet Explorer or Firefox
Open with Linux:

File type: Java Web Start


What is

JNLP stands for Java Networking Launching Protocol and is a special file which is in an XML format.

This is used for launching as well as managing java applications of programs from the web browser itself.

These files are used specifically for stand alone applications and not for Java applets.

They are used to run or execute these applications over a network from within the browser using the Java Web Start.

Detailed information 

Category: Data File.
File format: Proprietary.
Open with Windows: Java Web Start or a supporting Web browser
Open with Linux: Java Web Start or a supporting Web browser



File type: JPEG 2000 Image


JPG file extension is an image compression format for graphic images to be stored on the computer digitally and was originally standardized by JPEG, Joint Photographic Experts Group.

This file is used very commonly today by several devices like digital cameras, and other image sensing or imaging devices for storing as well as reading the images in a digital format since this format supports for up to 24-bit color data. Hence it can be used for very high quality images.

This format is also a very common format and is used highly for publishing graphics on the web. JPG compression uses a loose compression technique which implies that during the compression there is a loss in the data of the image and can cause a noticeable reduction in the quality of the image in the event a very high amount of compression is tried on the original image.

Although it is a very good compression algorithm and achieves very good results for digital images, if used with very high compressions it may highly reduce the quality of the image which is not recoverable.


how to Open JPG File


Category: Data File.
File format: Proprietary.
Open JPG file with Windows: Web browser like Internet Explorer or Firefox, Any picture viewer, Roxio Easy Media Creator, The Logo Creator, Nuance OmniPage Professional, Nuance PaperPort, Corel Paint Shop Pro Photo X2, Adobe Photoshop, ACDSee Photo Manager, Microsoft Photo Editor
Open with Linux: GIMP - The GNU Image Manipulation Program
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