Tips to open QT file

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

QT file extension

File Name Apple QuickTime Movie
File Developer Apple
File Category Video Files

The QT file is supported on 2 operating systems. Depending on your operating system, you may need different software to handle the QT files. Below is a summary of the number of programs that support and open the QT file on each system platform.

Operating systems
  • 8
  • 3
  • 0
  • 0
  • 0
  • 0

What is QT file?

The file in the QT format belongs to the Video Files category. The author of this format is Apple. In addition to this file, the Video Files category includes 546 related files. Apple QuickTime Movie is supported by 2 operating systems. The file will work on Mac OS, Windows systems, unfortunately not on others. The QuickTime Player application is recommended to open the file. It was released by Apple, Inc.. There are also 13 alternative programs to handle the QT file. The PowerDVD, Adobe Flash Professional, ALLPlayer, jetAudio programs will also handle the file when the QuickTime Player program does not fulfill its role.

How to open QT file?

An often recurring problem with Apple QuickTime Movie is that QT is not associated with the correct program file. Thus, when you open QT, 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 QT 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 QuickTime Player

An often overlooked issue is to make sure that QuickTime Player is installed on the computer. The easiest method is to use the system search engine by entering the program name QuickTime Player in it. If it is not, installation may solve the problem, as most applications create file associations during installation. Below you will find a list of applications that support QT files.

Step 2. Create association of QuickTime Player with QT files

If, despite the installed application, the QT file does not start in the QuickTime Player application, you must create a file 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. 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 QuickTime Player application as the default for handling the QT file.

Step 3. Update QuickTime Player to the latest version

If, however, after binding QuickTime Player with Apple QuickTime Movie there were still problems, you should update the program to the latest version. This can be done using the application (if it provides such options) or from the Apple, Inc. website and install the latest version.

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

The problem may also be with the file itself if the above steps don't work. File problems can be divided into the following:

Very often, the file may be size 0 or incomplete. Usually this applies to QT 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 virus scan using an up-to-date antivirus program should fix the problem. 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 QT file. Sometimes virus-infected QT 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 QT files changes over time. Help should be sought from the software developer, as they usually recommend using free file converters or installing an older version of the program.
The file may be corrupted in a number of ways. Depending on the type of file, it is necessary to repair it accordingly. Sometimes the program itself has options to repair the most popular QT file corruption. The easiest way is to restore the file from a backup, if there is one, or contact Apple
When reading, a message appears that the file was encrypted or corrupted. The encrypted QT 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. It is best to move QT to a different directory.
This can happen on a file that does not support multiple access. In this case, the QT file is blocked by the first application to open it. Running programs (including those in the background) should be verified. If the error persists after closing other programs, wait for a while. Antivirus programs or a backup being made may lock the file for a while without the user's knowledge. If the problem persists, restart the machine.