Tips to open QS4 file

Can't open the QS4 file? You are not the only one. Thousands of users face similar problems every day. Below you will find tips on how to open QS4 files as well as a list of programs that support QS4 files.

QS4 file extension

File Name Sinclair QL Hires Screen Format
File Category Raster Image Files

The QS4 file is supported on 1 operating systems. Depending on your operating system, you may need different software to handle the QS4 files. Below is a summary of the number of programs that support and open the QS4 file on each system platform.

Operating systems
  • 1
  • 0
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  • 0
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What is QS4 file?

The file in the QS4 format belongs to the Raster Image Files category. Additionally, the Raster Image Files category contains 522 of other files. Sinclair QL Hires Screen Format appears on 1 operating systems as a functional file. The file will work on Windows systems, unfortunately not on others. It is recommended to use RECOIL to handle this file. This is a program created by Piotr Fusik and Adrian Matoga.

How to open QS4 file?

The most common problem when using Sinclair QL Hires Screen Format is that a specific QS4 is not associated with the program. Thus, when you open QS4, the program selection wizard or some other program starts. How to solve such a problem?

The first thing you should do is just "doubleclick" on the QS4 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 RECOIL

The first step is to check if the computer has the RECOIL program installed. The easiest method is to use the system search engine by entering the program name RECOIL in it. In the absence of an appropriate program, its installation in the vast majority of cases will fix the problem. Below you will find a list of applications that support QS4 files.

Programs to open QS4 file

Remember to download programs supporting QS4 files only from verified and safe sources. We suggest using the websites of software developers.

Step 2. Create association of RECOIL with QS4 files

If the application is or has been freshly installed, but the QS4 file still does not use the RECOIL program, it means no association. The association can be created using the drop-down list available by right-clicking on the file and selecting Properties. The window will show, among other things, the type of the file and the information by which the program is used to launch the file. 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. Checking the "Always use the selected program ..." box will permanently associate the QS4 file with the RECOIL program.

Step 3. Update RECOIL to the latest version

If, however, after binding RECOIL with Sinclair QL Hires Screen Format there were still problems, you should update the program to the latest version. In this case, use the Piotr Fusik and Adrian Matoga website or update the program from the application.

Step 4. Check for the following problems with the QS4 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 QS4 file may be unusually small compared to the original file. This suggests truncating the QS4 file contents when downloading or copying. Downloading the file again should fix the problem.
The most common cause here is computer viruses. A virus scan using an up-to-date antivirus program should fix the problem. Alternatively, you can use the scanners available online. For the best results, we will scan the entire operating system, not just our QS4 file. However, remember that not every infected QS4 file can be recovered, so it is important to take care of regular backups.
Older version of QS4 file may not always be supported by the latest software version. 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. The repair method must be adapted to the type of file and damage. Sometimes the program itself has options to repair the most popular QS4 file corruption. The easiest way is to restore the file from a backup, if there is one, or contact
The program can also signal the fact of encryption. The encrypted QS4 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. If possible, you can try to move the QS4 file to another location.
This can happen on a file that does not support multiple access. Some file types can only be opened in one program at a time. Just close unnecessary programs. Sometimes you have to wait for the session to the file QS4 to close. However, some background programs may block the QS4 file while scanning. If nothing helps, please reset the device.