Tips to open APPLET file

Can't open the APPLET file? You are not the only one. Thousands of users face similar problems every day. Below you will find tips on how to open APPLET files as well as a list of programs that support APPLET files.

APPLET file extension

File Name Eclipse Java Applet Policy Format
File Developer Eclipse
File Category Developer Files

The APPLET file is supported on 3 operating systems. Depending on your operating system, you may need different software to handle the APPLET files. Below is a summary of the number of programs that support and open the APPLET file on each system platform.

Operating systems
  • 1
  • 1
  • 1
  • 0
  • 0
  • 0

What is APPLET file?

The APPLET file has been categorized as Developer Files. The author of this format is Eclipse. Additionally, the Developer Files category contains 1205 of other files. Eclipse Java Applet Policy Format appears on 3 operating systems as a functional file. The file will work on Linux, Mac OS, Windows systems, unfortunately not on others. The Eclipse application is recommended to open the file. It was released by The Eclipse Foundation. There are also 2 alternative programs to handle the APPLET file. The Eclipse IDE for Java Developers programs will also handle the file when the Eclipse program does not fulfill its role.

How to open APPLET file?

The main problem with Eclipse Java Applet Policy Format is that the APPLET file is incorrectly associated with programs. This is manifested by the fact that APPLET files open in unusual applications or do not have an assigned program. This can be quickly resolved by following the instructions below.

The first thing you should do is just "doubleclick" on the APPLET file icon you want to open. If the operating system has an appropriate application to support it and there is also an association between the file and the program, the file should be opened.

Step 1. Install Eclipse

The first step is to check if the computer has the Eclipse program installed. To do this, enter the name Eclipse into the system search engine. If we do not have this program, it is worth installing it, as it will help you automatically associate the file APPLET with Eclipse. Below is a list of programs that support the file APPLET.

Programs to open APPLET file

Remember to download programs supporting APPLET files only from verified and safe sources. We suggest using the websites of software developers.

Step 2. Create association of Eclipse with APPLET files

However, it may happen that the application itself does not cause the APPLET file to open in the Eclipse application, but you can set it manually. The association can be created using the drop-down list available by right-clicking on the file and selecting Properties. Information about the file and the program that the file is associated with are available here. Using the "Change" button we can set the program to handle this type. It may happen that in the next window there will be no appropriate program - however, this can be corrected with the "Browse" option where you should manually indicate the program location. However, it is important to check the "Always use the selected program ..." box, this will allow you to permanently associate the APPLET file with the Eclipse application.

Step 3. Update Eclipse to the latest version

The fault may also lie with the Eclipse program, it is possible that Eclipse Java Applet Policy Format requires a newer version of the program. Some applications allow you to update from the program level, and for others you need to download the installer from the The Eclipse Foundation page and install.

Step 4. Check for the following problems with the APPLET file

If the above steps do not help, you can assume that the file itself is not correct. File problems can be divided into the following:

The affected file may be 0 KB or smaller than expected. This suggests truncating the APPLET file contents when downloading or copying. The only repair option is to download the file again.
The most common cause here is computer viruses. A virus scan using an up-to-date antivirus program should fix the problem. Some antivirus vendors also provide free online scanners. For the best results, we will scan the entire operating system, not just our APPLET file. As a result of the scan, sometimes it is not possible to recover APPLET files, which are deleted if there is a backup of this file, then after restoring it, it must also be scanned.
A typical compatibility error - the program does not support the older version of the APPLET file. These problems are known and are often very easy to fix using the software developers's website.
There can be many reasons for the failure. The repair method must be adapted to the type of file and damage. Some programs offer the ability to automatically repair APPLET file corruption. The easiest way to restore the file is from a backup or by contacting Eclipse, but this one can be expensive. Not all damage can be reversed.
The program indicates that the file is encrypted or corrupted. The encrypted APPLET files cannot be played on other computers than the one on which they were encrypted, they must be decrypted before using on another device.
Some operating systems do not allow file operations in certain locations, eg in system directories or directly on the system drive. The problem is only writing to the file, not reading it. It is best to move APPLET to a different directory.
This problem usually affects more complex files. You may find that another program you are using is preventing you from working with the file. Closing other programs should help. Sometimes it is necessary to wait a while before referencing the APPLET file again. Some anti-virus or backup software may occupy the APPLET file for a certain period of time. If this does not work either, restart the device.