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3 steps to open file with JAD extension

Usually solving problems with JAD file is simple – just install proper software and open the file. Read the guide and open JAD file now!

  1. 1. JAD File Extension
  2. 2. What is a(n) JAD file?
  3. 3. How to open JAD file?
    1. 3.1 Install a program that supports JAD files
    2. 3.2 Find and download proper software
      1. 3.2.1 Programs that support files with JAD extension
    3. 3.3 Check the JAD file for errors
  4. 4. Similar file extensions

JAD File Extension

File
  • File type Java Application Descriptor Format
  • File developer Oracle
  • File category Misc Files
  • File popularity rating
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What is a(n) JAD file?

The JAD (Java Application Descriptor Format) is a text-based file format that defines a Java application. It contains the application's short description, name, version, and identifier. It also includes other important properties like MIDlet-Data-Size, MIDlet-Install-Notify, MIDlet-VERsion, and more. The JAD file should have an associated JAR (Java Archive) file for the Java application to execute.

When deploying a Java application, the JAD serves as the descriptor of the application deployment package. It can contain vendor specific metadata by adding custom properties. Generally, the size of an application defined by the JAD does not necessarily match with the actual size of the associated JAR, so the JAD should be used with caution.

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How to open JAD file?

There could be multiple reasons for which the system does not support given file. In the case of JAD extension, it is probable that none of the installed programs support given file type. Therefore, user should undertake the following steps

Step 1: Install a program that supports JAD files

If an application that supports JAD files is installed on user’s system, but is not used to open such files by default, right-click on the file icon and choose "Open with" option from the menu. Next, select the proper application and check the "Always use the selected application to open this kind of files" box. The system will store this information in its registry and use the selected program to open files with JAD extension by default.

Hint for Mac OS users

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For Mac OS users the procedure is analogous – open the file menu by right-clicking on the JAD file and choose "Information" option and select "Open with program" option. From the submenu select an application and click on "Change all" button.

Step 2: Find and download proper software

Inability to open JAD files may also be related to the lack of any application that supports given file being installed on the system. Should that be the case, user needs to download and install one of the following applications. Once installed, the system will automatically associate newly installed application with JAD files. If this step fails, see step 1.

Programs that support files with JAD extension

Windows programs
Windows

Step 3: Check the JAD file for errors

Sometimes, although relatively rarely, steps 1 and 2 might not lead to expected results. There can be several reasons for such situation to occur:

  • JAD file has been downloaded from the internet but for some reason it is incomplete. In such case the file should be re-downloaded and opened again.
  • Structure of given JAD file could be corrupted and as such the program is not able to open the file
  • Storage medium on which the file was stored is damaged
  • It is important to ascertain that the icon representing given file is not a shortcut a related JAD file no longer present in the location to which the shortcut points
  • If the user account has restricted access privileges it is advised to contact the system administrator or an IT expert

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