A .ts file is a type of video file format that can be used to store video data on DVDs and Blu-ray discs. The file extension .ts stands for Transport Stream, and it is compressed with MPEG-2 video compression. There are different types of .ts files, and they can be used for different purposes. Here are some examples:

• Video files: A .ts file can be a video file that stores video content on DVDs and Blu-ray discs. They can be played on different media players or directly with the use of a TS file converter.

• Typescript files: A .ts file can also be a text file that contains TypeScript code, an open-source programming language developed and maintained by Microsoft.

TS files can be opened and played in popular media players such as VideoLAN VLC media player, Corel VideoStudio, and Audials One. To open a .ts file with VLC media player, you can select Media/File → Open File…, navigate to the folder containing the .ts file, select the file, and either click Open or double-click the file to open it. You can also rename the .ts file extension to .mpeg and open it with an application that supports MPEG video.