Tips to open RU file

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

RU file extension

File Name Java Russian Font Properties Format
File Category Developer Files

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

Operating systems
  • 2
  • 1
  • 1
  • 0
  • 0
  • 0

What is RU file?

The file with the extension RU is the Developer Files file type. Developer Files consists of 1205 similar files. Java Russian Font Properties Format appears on 3 operating systems as a functional file. Although it can be found with greater or lesser success on any operating system, it will only be useful on Linux, Mac OS, Windows. This file type can also be opened by 3 other programs. The Windows Notepad programs will also handle the file when the Java Runtime Environment program does not fulfill its role.

How to open RU file?

An often recurring problem with Java Russian Font Properties Format is that RU is not associated with the correct program file. This causes the file RU to open by system applications not designed for this purpose, or to display a message that there is no associated program. This can be quickly resolved by following the instructions below.

The first thing you should do is just "doubleclick" on the RU 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 Java Runtime Environment

The first step is to check if the computer has the Java Runtime Environment program installed. This can be achieved by typing Java Runtime Environment into the operating system search engine. If it is not, installation may solve the problem, as most applications create file associations during installation. Later in this article you will find a list of programs that can open RU files.

Step 2. Create association of Java Runtime Environment with RU files

However, it may happen that the application itself does not cause the RU file to open in the Java Runtime Environment 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 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. Checking the "Always use the selected program ..." box will permanently associate the RU file with the Java Runtime Environment program.

Step 3. Update Java Runtime Environment to the latest version

If, despite the association of the Java Runtime Environment program with the Java Russian Font Properties Format file, the file still does not open, check the program version and possibly update it to the newest version.

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

The problem may also be with the file itself if the above steps don't work. This could be due to the file itself, the cleanest issues are:

The RU file may be unusually small compared to the original file. This is most often caused by a problem while downloading the RU file. Downloading the file again should fix the problem.
The most common cause here is computer viruses. A quick virus scan using an up-to-date antivirus program should clear up any doubts. If this is not possible, you can use the online scanner. For the best results, we will scan the entire operating system, not just our RU file. However, remember that not every infected RU file can be recovered, so it is important to take care of regular backups.
This can happen especially when the program is dynamically developed and the structure of the RU files changes over time. On their websites, developers usually offer free solutions to such problems, e.g. in the form of a conversion program or 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 RU file corruption.
The program indicates that the file is encrypted or corrupted. The encrypted RU files can be used by the device on which they were encrypted, on any other device it is required to have the appropriate cryptographic key and decrypt the file before its recovery.
Some of the system directories are excluded from modification. 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 RU file to another location.
This problem usually affects more complex files. Some file types can only be opened in one program at a time. Closing other programs should help. Sometimes you have to wait for the session to the file RU to close. Some anti-virus or backup software may occupy the RU file for a certain period of time. If nothing helps, please reset the device.