Knowledge Base

File Extension QT

The file extension QT is associated with Apple QuickTime multimedia, which is a video format created by Apple that is designed for both the Windows operating system and Mac OS X. QT files are commonly used with Apple QuickTime Player, which is a multimedia application designed by Apple for playing back movies and videos.

The QT file extension is a multimedia file type which contains video clips in QuickTime format. The format can include animations, audio files, three dimensional graphics, virtual reality content, video clips, and other elements which are used to deliver a high quality video. The Apple QuickTime format commonly uses the file extension MOV, which is a versatile format that can be used with a broad range of applications. The QT extension can be used with a variety of multimedia applications as well.

How to Open QT Files

The most common way to open QT files is by using Apple QuickTime Player which is available in both a free and paid version on the Apple website. QuickTime Player is compatible with the Windows operating system and Mac OS X.

Since the QT file extension can be compatible with multiple applications, try double clicking on the file to see if your PC will automatically open the file in a default application you have installed on your PC. This will save time if you already have a multimedia application that is compatible with the file extension QT.

If you are looking for a multiplatform multimedia application that will open QT files, you can use VLC Media Player, which is an open source application that is available as a free download on the VideoLAN website. You can also opt to use MPlayer, which is an open source multimedia player that can be downloaded at no cost on the MPlayer or CNET websites. Both multimedia player applications mentioned here are compatible with Windows, Mac OS X, and the Linux operating system.

You can also opt to convert the QT file extension to another popular format such as MOV to allow the file to be used with a wider variety of multimedia applications. There are a variety of video converters available as a free download on websites such as CNET and Softpedia which will convert QT files for you. Some of the video conversion programs include Freemake Video Converter, Free Studio, Koyote Free Video Converter, FormatFactory and Hamster.

If the QT file has been emailed to you, you can opt to convert it to the MOV format using a free online file conversion website. There are a number of online websites such as Zamzar which will perform file conversion for you at no cost. All you need to do is log onto the website, browse for the QT file you want to convert, choose the MOV format, enter your email address, and click on Convert. Within minutes you will receive the newly converted file in your email inbox.

Once you convert QT files to the MOV format, you can use additional multimedia players to open and play the file. Some of the multimedia applications include Windows Media Player which is typically included in the Windows operating system, ALLPlayer which can be obtained on the MarBit Computers website, CyberLink PowerDVD 12, and Roxio to name a few applications. If you opt to use Roxio, you must use Roxio Creator NXT Pro for the Windows operating system. For Mac OS X, you should use Roxio Toast 11 or Roxio Popcorn 4. Both applications are available for download on the Roxio website.

Adobe Flash Professional CS6 will also open the file extension QT using Windows or Mac OS X. Flash Professional is part of the Adobe CS6 Creative Suite of applications and is available in a free trial version on the Adobe website.