Apple's mania for developing an exclusive codec for their mobile devices led him to QuickTime, a software that we can only use to reproduce a type of exclusive content developed by Apple applications. Fortunately over the years, it seems that the company has started to adopt new formats so the use of QuickTime has been greatly reduced.
In addition, since in 2016, the company TredMicro will detect an important security hole in this software, Apple decided to completely abandon its development, so currently, we can only download the version of QuickTime that is compatible with Windows 7. To do so, you just have to go to the Apple website through this link.
The latest version of QuickTime Player available on the Apple website, the only website from which you should download it, if you have no other choice, is number 7.7.9, version that is designed for use with Windows Vista and Windows 7, therefore that if we install it in a later or earlier version, it is possible that some of the functions that it offers us are not available or are not 100% compatible. This version is from 2014, so it hasn't been updated for a few years, despite the security hole it has.
If you don't want to put your computer at risk, the best thing you can do is download the VLC application, an application that is compatible with all, absolutely all codecs on the market, including QuickTime playback format.
Thanks to VLC, we don't have to go looking for codec packages so that our team can play any type of video. But if our team is managed by Windows 10, no need to install VLC either, since this latest version of Windows is compatible with all existing codecs on the market, including the mkv format.