Tips to open TOS file

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

TOS file extension

File Name Atari ST TOS Archive
File Category Archive Files

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

Operating systems
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What is TOS file?

The file in the TOS format belongs to the Archive Files category. In addition to this file, the Archive Files category includes 619 related files. Atari ST TOS Archive appears on 1 operating systems as a functional file. The file will work on systems, unfortunately not on others. The Atari ST application is recommended to open the file. It was released by Atari, Inc..

How to open TOS file?

The main problem with Atari ST TOS Archive is that the TOS file is incorrectly associated with programs. Thus, when you open TOS, the program selection wizard or some other program starts. This can be quickly resolved by following the instructions below.

The first thing you should do is just "doubleclick" on the TOS 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 Atari ST

In this case, you should first verify that the Atari ST application is installed on the computer. The easiest method is to use the system search engine by entering the program name Atari ST in it. If we do not have this program, it is worth installing it, as it will help you automatically associate the file TOS with Atari ST. Later in this article you will find a list of programs that can open TOS files.

Programs to open TOS file

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

Step 2. Create association of Atari ST with TOS files

If the application is or has been freshly installed, but the TOS file still does not use the Atari ST program, it means no association. This option is available from the level of Properties of a specific file available in the context menu. The displayed window will contain information about the program that supports this type of file. 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. The "always use the selected program ..." field will set the Atari ST application as the default for handling the TOS file.

Step 3. Update Atari ST to the latest version

If, despite the association of the Atari ST program with the Atari ST TOS Archive file, the file still does not open, check the program version and possibly update it to the newest version. In this case, use the Atari, Inc. website or update the program from the application.

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

If the above steps do not help, you can assume that the file itself is not correct. File problems can be divided into the following:

Very often, the file may be size 0 or incomplete. This is most often caused by a problem while downloading the TOS file. The only repair option is to download the file again.
The operating system may be infected with a computer virus. A quick virus scan using an up-to-date antivirus program should clear up any doubts. Some antivirus vendors also provide free online scanners. The scan should cover the entire computer, not only the TOS file that we want to open. However, remember that not every infected TOS file can be recovered, so it is important to take care of regular backups.
A typical compatibility error - the program does not support the older version of the TOS file. 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. Repairing is very dependent on the file type. Some programs offer the ability to automatically repair TOS file corruption. The easiest way to restore the file is from a backup or by contacting N/A, but this one can be expensive. Not all damage can be reversed.
The program can also signal the fact of encryption. The encrypted file TOS 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 TOS 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. Running programs (including those in the background) should be verified. Sometimes you have to wait for the session to the file TOS to close. Some anti-virus or backup software may occupy the TOS file for a certain period of time. If this does not work either, restart the device.