Tips to open ZL file

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

ZL file extension

File Name Zlib Compressed Format
File Developer Jean-loup Gailly
File Category Compressed Files

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

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

What is ZL file?

The file with the extension ZL is the Compressed Files file type. The author of this format is Jean-loup Gailly. Compressed Files consists of 236 similar files. Zlib Compressed Format is most often found on 3 operating systems. The file will work on Linux, Mac OS, Windows systems, unfortunately not on others. The main program that supports this format is Zlib. This was created by Jean-loup Gailly and Mark Adler. There are also 2 alternative programs to handle the ZL file.

How to open ZL file?

The main problem with Zlib Compressed Format is that the ZL file is incorrectly associated with programs. This causes the file ZL to open by system applications not designed for this purpose, or to display a message that there is no associated program. How to solve such a problem?

The first thing you should do is just "doubleclick" on the ZL 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 Zlib

The first step is to check if the computer has the Zlib program installed. To do this, enter the name Zlib into the 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 ZL files.

Programs to open ZL file

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

Step 2. Create association of Zlib with ZL files

If, despite the installed application, the ZL file does not start in the Zlib application, you must create a file association. It is most convenient to call the context menu with the right mouse button and select Properties. The displayed window will contain information about the program that supports this type of file. Using the "Change" button we can set the program to handle this type. 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 Zlib application as the default for handling the ZL file.

Step 3. Update Zlib to the latest version

The fault may also lie with the Zlib program, it is possible that Zlib Compressed Format requires a newer version of the program. In this case, use the Jean-loup Gailly and Mark Adler website or update the program from the application.

Step 4. Check for the following problems with the ZL 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 ZL file may be unusually small compared to the original file. Usually this applies to ZL files downloaded from the Internet in case the download did not finish properly. Downloading the file again should fix the problem.
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. 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 ZL file. Sometimes virus-infected ZL files cannot be recovered, so make a backup in advance.
This can happen especially when the program is dynamically developed and the structure of the ZL 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 this. Depending on the type of file, it is necessary to repair it accordingly. Some programs offer the option of recovering data from damaged ZL files. The easiest way to restore the file is from a backup or by contacting Jean-loup Gailly, but this one can be expensive. Not all damage can be reversed.
The program can also signal the fact of encryption. The encrypted ZL 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 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. Copying the ZL file to another location will fix the problem.
This problem usually affects 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 ZL file while scanning. If nothing helps, please reset the device.