Tips to open MF file

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

MF file extension

File Name Java Manifest Format
File Developer Sun Microsystems
File Category Developer Files

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

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

What is MF file?

The file in the MF format belongs to the Developer Files category. The creator of this file is Sun Microsystems. Developer Files consists of 1205 similar files. Java Manifest Format is supported by 3 operating systems. Although it can be found with greater or lesser success on any operating system, it will only be useful on Linux, Mac OS, Windows. There are also 2 alternative programs to handle the MF file.

How to open MF file?

The main problem with Java Manifest Format is that the MF file is incorrectly associated with programs. This is manifested by the fact that MF 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 MF 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 Text editor

In this case, you should first verify that the Text editor application is installed on the computer. This can be achieved by typing Text editor into the operating system search engine. In the absence of an appropriate program, its installation in the vast majority of cases will fix the problem. Later in this article you will find a list of programs that can open MF files.

Programs to open MF file

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

Step 2. Create association of Text editor with MF files

If the application is or has been freshly installed, but the MF file still does not use the Text editor program, it means no association. This option is available from the level of Properties of a specific file available in the context menu. Information about the file and the program that the file is associated with are available here. Changes can be made using the "Change" button. If there is no software on the list, simply select "Browse" and manually select the directory where the application is installed. The "always use the selected program ..." field will set the Text editor application as the default for handling the MF file.

Step 3. Update Text editor to the latest version

If, despite the association of the Text editor program with the Java Manifest 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 MF file

Of course, it may happen that despite the above steps, the file still does not work. This could be due to the file itself, the cleanest issues are:

The affected file may be 0 KB or smaller than expected. Usually this applies to MF files downloaded from the Internet in case the download did not finish properly. The file should be downloaded again, making sure that the process has finished correctly.
The computer may have fallen victim to a computer virus or hacker. Perform a virus scan using available and up-to-date anti-virus software. If this is not possible, you can use the online scanner. The scan should cover the entire computer, not only the MF file that we want to open. Sometimes virus-infected MF files cannot be recovered, so make a backup in advance.
A typical compatibility error - the program does not support the older version of the MF file. These problems are known and are often very easy to fix using the software developers's website.
There can be many reasons for this. The repair method must be adapted to the type of file and damage. Some programs offer the option of recovering data from damaged MF files.
When reading, a message appears that the file was encrypted or corrupted. The encrypted MF 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 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. It is best to move MF to a different directory.
This problem only occurs with more complex files. Some file types can only be opened in one program at a time. Running programs (including those in the background) should be verified. If the error persists after closing other programs, wait for a while. However, some background programs may block the MF file while scanning. If the problem persists, restart the machine.