What is a QT file?
QuickTime movie file from Apple
QT is an acronym for Apple’s famous QuickTime codec. Thus, files with the .qt file extension are Apple QuickTime movie files. QT files were developed for the purpose of creating, editing, publishing, and viewing multimedia files for Apple’s QuickTime Player. QT files typically contain movies, graphics, videos, animations, and virtual reality content. QT files are compressed to optimize their delivery via the Internet and for better performance when streaming multimedia. QT files are supported by both Windows and MacOS operating systems.