Tips to open SUN file

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

SUN file extension

File Name Sun Raster Graphic Format
File Developer Sun Microsystems
File Category Raster Image Files

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

Operating systems
  • 4
  • 2
  • 3
  • 0
  • 0
  • 0

What is SUN file?

The file with the extension SUN is the Raster Image Files file type. The creator of this file is Sun Microsystems. Raster Image Files consists of 522 similar files. Sun Raster Graphic Format is supported by 3 operating systems. These systems consist of Linux, Mac OS, Windows, although it may occasionally be found on another system, it will be non-functional. The XnView application is recommended to open the file. It was released by Pierre-Emmanuel Gougelet. There are also 8 alternative programs to handle the SUN file. GIMP, IrfanView, PMView Pro will apply when it is not possible to use XnView.

How to open SUN file?

The most common problem when using Sun Raster Graphic Format is that a specific SUN is not associated with the program. This is manifested by the fact that SUN files open in unusual applications or do not have an assigned program. How to solve such a problem?

The first thing you should do is just "doubleclick" on the SUN 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 XnView

The first step is to check if the computer has the XnView program installed. The easiest method is to use the system search engine by entering the program name XnView in it. If it is not, installation may solve the problem, as most applications create file associations during installation. Below is a list of programs that support the file SUN.

Step 2. Create association of XnView with SUN files

If, despite the installed application, the SUN file does not start in the XnView application, you must create a file association. 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 select the desired program. 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 SUN file with the XnView application.

Step 3. Update XnView to the latest version

If, however, after binding XnView with Sun Raster Graphic Format there were still problems, you should update the program to the latest version. Some applications allow you to update from the program level, and for others you need to download the installer from the Pierre-Emmanuel Gougelet page and install.

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

If the above steps do not help, you can assume that the file itself is not correct. The most common file problems are:

The SUN file may be unusually small compared to the original file. This is most often caused by a problem while downloading the SUN file. The only repair option is to download the file again.
The computer may have fallen victim to a computer virus or hacker. A quick virus scan using an up-to-date antivirus program should clear up any doubts. Alternatively, you can use the scanners available online. However, it is important to scan the entire system, not only the file SUN or the program directory. However, remember that not every infected SUN file can be recovered, so it is important to take care of regular backups.
Older version of SUN file may not always be supported by the latest software version. Help should be sought from the software developer, as they usually recommend using free file converters or installing an older version of the program.
There can be many reasons for the failure. Depending on the type of file, it is necessary to repair it accordingly. Sometimes the program itself has options to repair the most popular SUN file corruption. You can restore the file from a backup or use Sun Microsystems help.
When reading, a message appears that the file was encrypted or corrupted. The encrypted file SUN except for the special designation, works normally, but only on the device where it was encrypted, before transferring it to another machine, decryption is required.
The operating system protects files in some locations (e.g. the root of the system partition) against unauthorized access. While there is usually no problem reading such a file, it may not be possible to save it. If possible, you can try to move the SUN file to another location.
This problem usually affects more complex files. You may find that another program you are using is preventing you from working with the file. Just close unnecessary programs. If the error persists after closing other programs, wait for a while. Antivirus programs or a backup being made may lock the file for a while without the user's knowledge. If the problem persists, restart the machine.